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Vedangas (Samskrit : वेदाङ्गम्) literally meaning 'limbs of the Veda' are the six angas or explanatory limbs to the Vedas. They include Shiksha (authored by various rishis), Vyakarana of [[Panini (पाणिनिः)|Panini]], the Chandas of [[Pingalacharya (पिङ्गलाचार्यः)|Pingalacharya]], the Nirukta of Maharshi [[Maharshi Yaska (महर्षिः यास्कः)|Yaska]], the Jyotish of [[Lagadha]] and the Kalpas (Shrauta, Grhya, Dharma and Shulba) belonging to the authorship of various Rishis.

Vedangas (Samskrit : वेदाङ्गम्) literally meaning 'limbs of the Veda' are the six angas or explanatory limbs to the Vedas. They include Shiksha (authored by various rishis), Vyakarana of Panini, the Chandas of Pingalacharya, the Nirukta of Maharshi Yaska, the Jyotish of [[Lagadha]] and the Kalpas (Shrauta, Grhya, Dharma and Shulba) belonging to the authorship of various Rishis.

It is said that Bhagavan Vishnu incarnated as Maharshi Veda [[Vyasa]] in Dvapara yuga and organized the [[Vedas (वेदाः)|Vedas]] in their present form. Maharshi Vyasa's efforts brought about uniformity in the religious observances thereby performance of rites and rituals, religious ceremonies, yajnas (sacrifices) and [[Vrata (व्रतम्)|vratas]] (vows) continued without any flaw. As Vedas have different aspects of understanding to them, various types of expositions on Vedas came into existence and each became a subject to be learnt for a comprehensive understanding of the Vedas to be achieved. Maharshi Yaska, who gave Nirukta to the world, also expounded [[Vedic Terminology|vedic terminology]] on the basis of legends and ancient lore. [[Manu (मनुः)|Manu]], the Law giver of ancient Bharatavarsha, laid down certain instructions as to how the teaching of Vedas should be conducted.

It is said that Bhagavan Vishnu incarnated as Maharshi Veda [[Vyasa]] in Dvapara yuga and organized the [[Vedas (वेदाः)|Vedas]] in their present form. Maharshi Vyasa's efforts brought about uniformity in the religious observances thereby performance of rites and rituals, religious ceremonies, yajnas (sacrifices) and vratas (vows) continued without any flaw. As Vedas have different aspects of understanding to them, various types of expositions on Vedas came into existence and each became a subject to be learnt for a comprehensive understanding of the Vedas to be achieved. Maharshi Yaska, who gave Nirukta to the world, also expounded [[Vedic Terminology|vedic terminology]] on the basis of legends and ancient lore. Manu, the Law giver of ancient Bharatavarsha, laid down certain instructions as to how the teaching of Vedas should be conducted.

The Six Angas are as follows :

#[[Shiksha]] is a knowledge of phonetics. Shiksha deals with pronunciation and accent. The text of the Vedas are arranged in various forms or Pathas (पाठ-s). The Padapatha (पदपाठः) gives each word its separate form. The Kramapatha (क्रमपाठः) connects the word in pairs.<ref name=":022">All About HInduism, Swami Sivananda, Page 33-34</ref>

Included in the Chaturdasha vidyas, Vedangas classified under the Smrti class of literature, are significant to gain complete knowledge of the Vedas. One becomes proficient in six aspects by adhyayana of Vedangas<ref name=":2">Upadhyaya, Baldev (1958) Vaidik Sahitya</ref>

#[[Chandas (छन्दस्)|Chandas]] is the knowledge of meters. This auxiliary discipline lays its focus on the metrical construction of vedic mantras and poetic meters, including those based on the number of syllables per mantra and those based on the duration of pronunciation of syllables in a mantra.

* Pronunciation of the veda mantras

#[[Vyakarana (व्याकरणम्)|Vyakarana]] is the knowledge of construction of words or grammar.  This auxiliary discipline has focused on the rules of grammar and siddhiprakriya (सिद्धिप्रक्रिया | the process of deriving a word), so as to establish the exact form of words and sentences to properly express ideas.

* Practice of the yajnas and yagas

#[[Nirukta]] gives the vyutpatti-artha (व्युत्पत्ति-अर्थ | etymology), explaining words, particularly those which are archaic and have a different ancient vedic usage with uncommon meaning. This auxiliary discipline has focused on developing a [[Nighantu]] which is a dictionary that has a collection of vedic usages. These words are analysed to establish the proper meaning of the words according to the context used in vedas.

* Construction of words and knowing the primary meaning  

#[[Jyotisha|Jyotish]] deals with astronomy and astrology. It deals with the movements of the heavenly bodies, planets, etc., and their influence in human affairs.<ref name=":022" /> This auxiliary Vedic discipline focused on time keeping.

* Meanings of words according to the vedic context

#[[Kalpa (Vedanga)|Kalpas]] are the texts that deal with the methods of [[Yagya (यज्ञ)|yajna]] and other rituals. This field focused on standardizing procedures for Vedic Shrauta rituals, Smarta rituals associated with [[Samskaras (संस्काराः)|samskaras]] - major life events such as birth, wedding and death in family, as well as discussing [[Dharma|dharmas]] laid down for the personal conduct and proper duties of an individual in different stages of his life. 

* Metrical composition and patha-paddhati of mantras

* Knowledge of appropriate time and place to perform yajnas and yagas.

Vedangas (वेदाङ्ग-s) help us construct, chant and understand Veda mantras. These are called Angas (अङ्ग-s | ancillaries) to Vedas.<blockquote>शिक्षा कल्पो व्याकरणं निरुक्तं छन्दसां चयः । ज्योतिषामयनं चैव वेदाङ्गानि षडेव तु ॥</blockquote><blockquote>śikṣā kalpo vyākaraṇaṃ niruktaṃ chandasāṃ cayaḥ । jyotiṣāmayanaṃ caiva vedāṅgāni ṣaḍeva tu ॥</blockquote>According to the above shloka, Vedangas are six in number namely Shiksa (शिक्षा), Kalpa (कल्पः), Vyakarana (व्याकरणम्), Nirukta (निरुक्तम्), Chandas (छन्दस्) and Jyotish (ज्योतिष्).

===  शिक्षा ॥ Shiksha ===

===  शिक्षा ॥ Shiksha ===

Shiksha deals mainly with svarajnana (स्वरज्ञानम् | phonetics) and it is the science disciplining the efforts of ear, nose and vocal cords to utter the accurate sound as defined by Vedic mantras.               

Shiksha deals mainly with svarajnana (स्वरज्ञानम् | phonetics) and it is the science disciplining the efforts of ear, nose and vocal cords to utter the accurate sound as defined by Vedic mantras.               

Classical Sanskrit literature differs from Vedic literature, as it is not highly regulated by the uccharana (उच्चारणम् | utterance) which is important for the utterance of vedic mantras. Hence, Shiksha is of vital importance as an ancillary for vedas, because ashuddhoccharana (अशुध्दोच्चारणम् | wrong utterence) of mantras bring about a meaning change which can cause great harm to the yajamana (यजमानः | the performer of the yajna).               

Classical Sanskrit literature differs from Vedic literature, as it is not highly regulated by the uccharana (उच्चारणम् | utterance) which is important for the utterance of vedic mantras. Hence, Shiksha is of vital importance as an ancillary for vedas, because ashuddhoccharana (अशुध्दोच्चारणम् | wrong utterence) of mantras bring about a meaning change which can cause great harm to the yajamana (यजमानः | the performer of the yajna).               

An example of such wrong utterance is typically explained by the legend of Vrttrasura's birth:            <blockquote>मन्त्रो हीनः स्वरतो वर्णतो वा मिथ्या प्रयुक्तो न तमर्थमाह । स वाग्वज्रो यजमानं हिनस्ति यथेन्द्रशत्रुः स्वरतोपराधात् ॥</blockquote><blockquote>mantro hīnaḥ svarato varṇato vā mithyā prayukto na tamarthamāha । sa vāgvajro yajamānaṃ hinasti yathendraśatruḥ svaratoparādhāt ॥</blockquote>If a mantra is devoid of a varna (letter), or has wrong utterances or svaras, then it does not the give the meaning it is intended to and produces a false meaning. This incorrectly and improperly uttered mantra becomes a vakvajra (वाक्वज्रः | word weapon) and is capable of destroying the yajamana (performer of the yajna). Example is the famous story of Indra's enemy, [[Vrtrasura (वृत्रासुरः)|Vrtrasura]] (वृत्रासुरः) whose origin was due to svaraparadha (स्वरापराधः | wrong svara utterance) of a mantra.             

An example of such wrong utterance is typically explained by the legend of Vrttrasura's birth:            <blockquote>मन्त्रो हीनः स्वरतो वर्णतो वा मिथ्या प्रयुक्तो न तमर्थमाह । स वाग्वज्रो यजमानं हिनस्ति यथेन्द्रशत्रुः स्वरतोऽपराधात् ॥ (Pani. Shik. 42)</blockquote><blockquote>mantro hīnaḥ svarato varṇato vā mithyā prayukto na tamarthamāha । sa vāgvajro yajamānaṃ hinasti yathendraśatruḥ svarato'parādhāt ॥</blockquote>If a mantra is devoid of a varna (letter), or has wrong utterances or svaras, then it does not the give the meaning it is intended to and produces a false meaning. This incorrectly and improperly uttered mantra becomes a vakvajra (वाक्वज्रः | word weapon) and is capable of destroying the yajamana (performer of the yajna). Example is the famous story of Indra's enemy, [[Vrtrasura (वृत्रासुरः)|Vrtrasura]] (वृत्रासुरः) whose origin was due to svaraparadha (स्वरापराधः | wrong svara utterance) of a mantra.<ref name=":2" />            

==== '''वृत्रासुर-जननम्  || Vrttrasura Janana''' ====

==== वृत्रासुर-जननम्  || Vrttrasura Janana  ====

<blockquote>तत्त्वष्टाहवनीयमुप प्रावर्तयत्स्वाहेन्द्रशत्रुर्वर्धस्वेति यदवर्तयत्तद्वृत्रस्य वृत्रत्वं यदब्रवीत्स्वाहेन्द्रशत्रुर्वर्धस्वेति तस्मादस्येन्द्रः शत्रुरभवत् | (Tait. Samh. 2.5.2)<ref name=":1">Taittriya [http://parankusa.org/KrYajurBrowse.aspx Samhita] </ref></blockquote><blockquote>tattvaṣṭāhavanīyamupa prāvartayatsvāhendraśatrurvardhasveti yadavartayattadvṛtrasya vṛtratvaṃ yadabravītsvāhendraśatrurvardhasveti tasmādasyendraḥ śatrurabhavat | (Tait. Samh. 2.5.2)<ref name=":1">Taittriya [http://parankusa.org/KrYajurBrowse.aspx Samhita] </ref></blockquote><blockquote>Tvasta (त्वष्टा) angered by Indra's killing of his son Vishwaroopa, initiates an abhicharika yaga (अभिचारिक-यागः | a yaga performed to cause harm to an intended person) to procure a son to kill Indra. The [[Rtvik (ऋत्विक्)|rtvijas]] (ऋत्विज्-s) were to utter the mantra "इन्द्रशत्रुर्वर्धस्व" with Anta-Udatta (अन्त-उदात्तः) or Udatta svara in the end of the mantra (to mean, Prosper Oh ! Enemy of Indra). Instead, they used the Adya Udatta (आद्य-उदात्तः) or Udatta svara in the beginning of the mantra (meaning, Oh! Indra, one who has enemies, Prosper).So, instead of asking for the rise and prosperity of a son to take revenge on Indra, the Rtvijas asked for the prosperity and glory of Indra who destroyed Asuras. Thus, Vrtrasura, the son of Tvasta was born, an enemy of Indra, but eventually Indra was rewarded with glory in killing Vrtrasura.</blockquote>Shiksha literature is very widely available based on the different shakhas (शाखा-s | divisions) of different vedas. They are Panineeya Shiksha (पाणिनीयशिक्षा), Vyasashiksha (व्यासशिक्षा), Bharadvaja shiksha (भारद्वाजशिक्षा), Yajnavalkya Shiksha (याज्ञवलक्यशिक्षा), Parashara shiksha (पराशरशिक्षा), Vasishtee shiksha (वासिष्टीशिक्षा), Katyayanee shiksha (कात्यायनीशिक्षा), Madhyandinee shiksha (माध्यन्दिनीशिक्षा), Keshavee shiksha (केशवीशिक्षा), Amoghanandinee shiksha (अमोघानन्दिनीशिक्षा), Mandavya shiksha (माण्डव्यशिक्षा), Mallasharma shiksha (मल्लशर्मशिक्षा), Svarakusha shiksha (स्वराकुशशिक्षा), Shodasha shiksha (षोडशशिक्षा), Naradeeya shiksha (नारदीयशिक्षा), Mandukeeya shiksha ( माण्डुकीयशिक्षा), Svarabhaktilakshana (स्वरभक्तिलक्षणशिक्षा), Avasananirnaya shiksha (अवसाननिर्णयशिक्षा), Varnaratna pradeepika shiksha (वर्णरत्नप्रदीपिकाशिक्षा) among many others.

<blockquote>तत्त्वष्टाहवनीयमुप प्रावर्तयत्स्वाहेन्द्रशत्रुर्वर्धस्वेति यदवर्तयत्तद्वृत्रस्य वृत्रत्वं यदब्रवीत्स्वाहेन्द्रशत्रुर्वर्धस्वेति तस्मादस्येन्द्रः शत्रुरभवत् | (Tait. Samh. 2.5.2)<ref name=":1">Taittriya [http://parankusa.org/KrYajurBrowse.aspx Samhita] </ref></blockquote><blockquote>tattvaṣṭāhavanīyamupa prāvartayatsvāhendraśatrurvardhasveti yadavartayattadvṛtrasya vṛtratvaṃ yadabravītsvāhendraśatrurvardhasveti tasmādasyendraḥ śatrurabhavat | (Tait. Samh. 2.5.2)<ref name=":1">Taittriya [http://parankusa.org/KrYajurBrowse.aspx Samhita] </ref></blockquote><blockquote>Tvasta (त्वष्टा) angered by Indra's killing of his son Vishwaroopa, initiates an abhicharika yaga (अभिचारिक-यागः | a yaga performed to cause harm to an intended person) to procure a son to kill Indra. The [[Rtvik (ऋत्विक्)|rtvijas]] (ऋत्विज्-s) were to utter the mantra "इन्द्रशत्रुर्वर्धस्व" with Anta-Udatta (अन्त-उदात्तः) or Udatta svara in the end of the mantra (to mean, Prosper Oh ! Enemy of Indra). Instead, they used the Adya Udatta (आद्य-उदात्तः) or Udatta svara in the beginning of the mantra (meaning, Oh! Indra, one who has enemies, Prosper).So, instead of asking for the rise and prosperity of a son to take revenge on Indra, the Rtvijas asked for the prosperity and glory of Indra who destroyed Asuras. Thus, Vrtrasura, the son of Tvasta was born, an enemy of Indra, but eventually Indra was rewarded with glory in killing Vrtrasura.</blockquote>Shiksha literature is very widely available based on the different shakhas (शाखा-s | divisions) of different vedas. They are Panineeya Shiksha (पाणिनीयशिक्षा), Vyasashiksha (व्यासशिक्षा), Bharadvaja shiksha (भारद्वाजशिक्षा), Yajnavalkya Shiksha (याज्ञवलक्यशिक्षा), Parashara shiksha (पराशरशिक्षा), Vasishtee shiksha (वासिष्टीशिक्षा), Katyayanee shiksha (कात्यायनीशिक्षा), Madhyandinee shiksha (माध्यन्दिनीशिक्षा), Keshavee shiksha (केशवीशिक्षा), Amoghanandinee shiksha (अमोघानन्दिनीशिक्षा), Mandavya shiksha (माण्डव्यशिक्षा), Mallasharma shiksha (मल्लशर्मशिक्षा), Svarakusha shiksha (स्वराकुशशिक्षा), Shodasha shiksha (षोडशशिक्षा), Naradeeya shiksha (नारदीयशिक्षा), Mandukeeya shiksha ( माण्डुकीयशिक्षा), Svarabhaktilakshana (स्वरभक्तिलक्षणशिक्षा), Avasananirnaya shiksha (अवसाननिर्णयशिक्षा), Varnaratna pradeepika shiksha (वर्णरत्नप्रदीपिकाशिक्षा) among many others.

=== कल्पः ॥ Kalpa ===

=== कल्पः ॥ Kalpa ===

# '''शुल्बसूत्राणि || Shulba sutras''' - Shastra for measurements, include the rekhaganita (रेखागणितम् | geometrical principles) laid down for vedic constructions.

# '''शुल्बसूत्राणि || Shulba sutras''' - Shastra for measurements, include the rekhaganita (रेखागणितम् | geometrical principles) laid down for vedic constructions.

==== '''श्रौतसूत्राणि ||''' '''Shrauta Sutras''' ====

==== श्रौतसूत्राणि || Shrauta Sutras ====

The Shrauta Sutras vividly describe the procedures for Darshapournamasa yajna (दर्शपौर्णमासयज्ञः) and other yajnas such as Agnihotra (अग्निहोत्रम्), Pashu yajna (पशुयज्ञः), and Soma yajna (सोमयज्ञः) among others as set forth in Shruti literature. Thus, it can be said that in Shrauta Sutras the explanations given in different Vaidika Brahamanas regarding Shrautagni yajnas (श्रौताग्नियज्ञाः) are dealt with in an orderly manner.

The Shrauta Sutras vividly describe the procedures for Darshapournamasa yajna (दर्शपौर्णमासयज्ञः) and other yajnas such as Agnihotra (अग्निहोत्रम्), Pashu yajna (पशुयज्ञः), and Soma yajna (सोमयज्ञः) among others as set forth in Shruti literature. Thus, it can be said that in Shrauta Sutras the explanations given in different Vaidika Brahamanas regarding Shrautagni yajnas (श्रौताग्नियज्ञाः) are dealt with in an orderly manner.

Of the available Shrauta sutras the important ones are - Ashvalayana (आश्वलायनः), Shankhayana (शाङ्खायनः), Manava (मानवः), Baudhayana (बौधायनः), Aapastamba (आपस्तम्बः), Hiranyakeshi (हिरण्यकेषी), Jaimineeya (जैमिनीयः), Katyayana (कात्यायनः), Vaitana (वैतानः), Latyayana (लाट्यायनः), Drahyayana Shrauta sutras (द्राह्यायनः).

Of the available Shrauta sutras the important ones are - Ashvalayana (आश्वलायनः), Shankhayana (शाङ्खायनः), Manava (मानवः), Baudhayana (बौधायनः), Aapastamba (आपस्तम्बः), Hiranyakeshi (हिरण्यकेषी), Jaimineeya (जैमिनीयः), Katyayana (कात्यायनः), Vaitana (वैतानः), Latyayana (लाट्यायनः), Drahyayana Shrauta sutras (द्राह्यायनः).

==== '''धर्मसूत्राणि ||''' '''Dharma Sutras''' ====

==== धर्मसूत्राणि || Dharma Sutras ====

Dharma Sutras expound the rules of Dharma and the actions (activities) to be performed by a person in general as well as the king or the ruler. A complete set of rules to be followed by the different people of different occupations and for those in the four ashramas (ब्रह्मचार्यः | brahmacharya, गृहस्थः | grhastha, वानप्रस्थः | vanaprastha and सन्यासः | sanyasa) are described in these sutras. Thus, it can be said that the topics related to the spiritual world, this material world, society and social activities, and all righteous activities are described in a holistic manner. Available important Dharma sutras include Vasishta (वासिष्ठः), Gautama (गौतमः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः), Manava (मानवः) Dharma sutras.

Dharma Sutras expound the rules of Dharma and the actions (activities) to be performed by a person in general as well as the king or the ruler. A complete set of rules to be followed by the different people of different occupations and for those in the four ashramas (ब्रह्मचार्यः | brahmacharya, गृहस्थः | grhastha, वानप्रस्थः | vanaprastha and सन्यासः | sanyasa) are described in these sutras. Thus, it can be said that the topics related to the spiritual world, this material world, society and social activities, and all righteous activities are described in a holistic manner. Available important Dharma sutras include Vasishta (वासिष्ठः), Gautama (गौतमः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः), Manava (मानवः) Dharma sutras.

==== '''गृह्यसूत्राणि ||''' '''Grhya Sutras''' ====

==== गृह्यसूत्राणि || Grhya Sutras ====

Grhya Sutras extensively discuss the yajnas to be performed by the brahmana, kshatriya and vaishya people. Most importantly, the षोडशसंस्काराः | Shodasa samskaras (from गर्भाधानम् | Garbhadhana to अन्त्येष्टिः | Antyeshti) that are performed for a person from birth till death are expounded vividly in these sutras. Thus, how a grhasta should lead his life and the procedure in which he has to conduct different dharmic activities are completely described here. The seven kinds of Grhya yajnas (गृह्ययज्ञाः) to be performed are:

Grhya Sutras extensively discuss the yajnas to be performed by the brahmana, kshatriya and vaishya people. Most importantly, the षोडशसंस्काराः | Shodasa samskaras (from गर्भाधानम् | Garbhadhana to अन्त्येष्टिः | Antyeshti) that are performed for a person from birth till death are expounded vividly in these sutras. Thus, how a grhasta should lead his life and the procedure in which he has to conduct different dharmic activities are completely described here. The seven kinds of Grhya yajnas (गृह्ययज्ञाः) to be performed are:

# पितृयज्ञः || Pitru Yajna

# पितृयज्ञः || Pitru Yajna

Available important Grhya sutras include Ashvalayana (आश्वलायनः), Shankhayana ( शाङ्खायनः), Manava (मानवः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः) Grhya sutras.

Available important Grhya sutras include Ashvalayana (आश्वलायनः), Shankhayana ( शाङ्खायनः), Manava (मानवः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः) Grhya sutras.

==== '''शुल्बसूत्राणि || Shulba Sutras''' ====

==== शुल्बसूत्राणि || Shulba Sutras ====

Shulba Sutras explain the different systems of measurements. Aspects of measurements of various vedinirmanavidhi (वेदिनिर्माणविधिः | altars and the procedure to construct them). For Example, homa shala (होमशाला), yajnashala (यज्ञशाला) are discussed. Thus, Vaidika Karmakanda (वैदिककर्मकाण्डः) is the topic for Shulbasutras, wherein geometry or the Rekhaganita (रेखागणितम्) is applied. Only those Shulbasutras associated with Yajurveda are available extensively indicating that Yajurveda is the main base for karmakanda. Katyayana (कात्यायनः), Manava (मानवः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः), Maitreyi (मैत्रेयी), Varaha (वाराहः), Vadhula (वाधूलः) shulba sutras are the important ones in this category.

Shulba Sutras explain the different systems of measurements. Aspects of measurements of various vedinirmanavidhi (वेदिनिर्माणविधिः | altars and the procedure to construct them). For Example, homa shala (होमशाला), yajnashala (यज्ञशाला) are discussed. Thus, Vaidika Karmakanda (वैदिककर्मकाण्डः) is the topic for Shulbasutras, wherein geometry or the Rekhaganita (रेखागणितम्) is applied. Only those Shulbasutras associated with Yajurveda are available extensively indicating that Yajurveda is the main base for karmakanda. Katyayana (कात्यायनः), Manava (मानवः), Baudhayana (बौधायनः), Apastamba (आपस्तम्बः), Maitreyi (मैत्रेयी), Varaha (वाराहः), Vadhula (वाधूलः) shulba sutras are the important ones in this category.

=== व्याकरणम् ॥ Vyakarana ===

=== व्याकरणम् ॥ Vyakarana ===

Jyotish shastra is like the eye to the veda purusha. Without the knowledge of this shastra, kala (कालः | time) cannot be determined. For example - Auspiciousness of the Day, night, fortnight, month, season, and year cannot be determined. Auspicious time for the performance of yajnas and for travel, the time is determined by the knowledge of this shastra. Vaidika samhitas explicitly deal with the kala (time) as in जीवेम शरदं शतम् || jīvema śaradaṃ śatam.

Jyotish shastra is like the eye to the veda purusha. Without the knowledge of this shastra, kala (कालः | time) cannot be determined. For example - Auspiciousness of the Day, night, fortnight, month, season, and year cannot be determined. Auspicious time for the performance of yajnas and for travel, the time is determined by the knowledge of this shastra. Vaidika samhitas explicitly deal with the kala (time) as in जीवेम शरदं शतम् || jīvema śaradaṃ śatam.

Ancient treatises on Jyotish available are Suryasiddhanta (सूर्यसिद्धन्तः), Brihat Parasharahora (बृहत्पराशरहोरः) by [[Parashara Rishi (पराशरऋषिः)|Parashara rishi]] (पराशर-ऋषिः), Brihat Jataka (बृहज्जातकम्) by[[Varahamihira (वराहमिहिरः)|Varahamihira]] (वराहमिहिरः) among others.  

Ancient treatises on Jyotish available are Suryasiddhanta (सूर्यसिद्धन्तः), Brihat Parasharahora (बृहत्पराशरहोरः) by Parashara rishi (पराशर-ऋषिः), Brihat Jataka (बृहज्जातकम्) by Varahamihira (वराहमिहिरः) among others.  

== Notes ==

== Notes ==

Vyakarana and Nirukta are unique to each Veda. Whereas Shiksha, Chandas, Kalpa and Jyotish are common for all Vedas.

Vyakarana and Nirukta are unique to each Veda. Whereas Shiksha, Chandas, Kalpa and Jyotish are common for all Vedas.