The mark is the method: many strands, woven — one straight answer out.

SIA Vigyan — the Sanskritised Inference Algorithm™

SIA Vigyan is this site, siavigyan.com, and SIA is the engine it is the home of. The name says, plainly, what we do. Sanskritised — the knowledge is the classical Sanskrit corpus itself, quoted in its own words. Inference — the system reasons over what the texts state: it weighs, adjudicates and concludes, the way a learned reader would. Algorithm — every step of that reasoning is computed, checkable and the same for everyone.

SIA is a knowledge system over the Jyotiṣa śāstra. Ask it a question against a birth chart and it answers the way the discipline itself answers: every interpretive sentence carries the identity of the classical verse it came from, retrieved from the text and open to inspection. Where the śāstra is silent, SIA says so; silence is an answer we respect. The strands in the mark are those many verse-streams; the single line they resolve into is the one grounded reading you receive.

An indigenous engine, to the last digit

The planetary mathematics under every chart is our own. Graha positions are computed by an engine built from the Sūrya Siddhānta and the Āryabhaṭīya — the tradition's own astronomy, implemented from the texts by SIA — and refined by SIA's own planetary computation. Every position in the gaṇita is computed here, live, for your minute and your town, with the Sūryasiddhānta's own steps printed beside the result. From the verse corpus to the planetary engine to the product itself, SIA is 100% made in India.

What the engine holds

Over 6,200 verses of nine classical works — the Bṛhat Parāśara Horā Śāstra (each citation opening to its folio), Sāravalī, Phaladīpikā, Bṛhajjātaka, the Jaimini Sūtra, the Sūryasiddhānta, Ṣaṭpañcāśikā, Praśna Mārga and Muhūrta Cintāmaṇi — all loaded on the server that answers you. More than 2,500 grounded rules, each a condition, a result and the verse it was drawn from. 18 daśā systems, 16 divisional charts, ṣaḍbala and aṣṭakavarga with śodhana and piṇḍa, the 36-guṇa melāpaka with its four doṣas, and a 250-question booklet for recovering a lost birth time. A full kundali runs past a hundred pages and carries more than 800 citations, and a rule without its verse never reaches you.

Lagna Shodhan — SIA's own instrument

A kundli is cast for a minute, and the lagna — the sign rising in the east, from which every house is counted — depends on that minute. When the birth time is unknown, remembered only as a part of the day, or rounded on a certificate, Lagna Shodhan(लग्न शोधन, birth-time rectification) recovers it. It is SIA's own instrument: you answer a bilingual booklet of plain yes-or-no questions about everyday nature and life — no astrology needed to answer them — and SIA weighs those answers against what the texts state of each rising sign and Moon sign, applies Parāśara's own checks for a lagna, and states a birth-time window with its reliability. When the evidence is thin or divided it does not name a window; it names what would settle it. It is part of every plan, and it is explained on its own page: Lagna Shodhan · लग्न शोधन.

What SIA is for

Study, reflection and the honest presentation of what the classical texts say about a chart. It is a reference and a guide — not a substitute for your own judgement, or for professional medical, legal or financial advice.

Sources

The Sanskrit verses SIA quotes are ancient public-domain texts. Every verse is cited by SIA's own identifier, with the page of a printed edition as a locator; SIA's English and Hindi glosses are its own. Answers are worded by an AI language model from facts SIA selects; the model adds no fact and no verse. If you believe any content on SIA infringes your rights, write to support@siavigyan.com and it is removed on notice while we look into it.

SIA Vigyan — the name and the site

SIA Vigyan is this site — siavigyan.com — the home of SIA, the Sanskritised Inference Algorithm. Vigyan (विज्ञान) is knowledge in its exact, tested form, and that is the word for what the engine does with the śāstra: it computes, it cites, and it shows its working. SIA Vigyan, SIA Jyotish and SIA Kundali all name the same thing — and so do their Hindi spellings, सिया विज्ञान, सिया कुंडली and सिया ज्योतिष (एसआईए विज्ञान), as a Hindi keyboard types them.

Who makes it

SIA is built by SIA NextGen Technologies Pvt Ltd. Contact: Arya Kartikey Tiwari, +91 9140817930, support@siavigyan.com.

SIA Vigyan elsewhere: Instagram @sia.vigyan · Facebook — SIA Vigyan.