Every other astrology site guesses. SIA cites.
Computed, not looked up
Your planetary positions are derived from scratch from the Sūryasiddhānta — ahargaṇa, mean longitude, manda/śīghra corrections, sidereal output. No ephemeris is shipped or called. The maths the classical astronomers used, run for your birth moment.
Every sentence carries its verse
Each interpretive line is tagged with the id of the classical verse behind it. If a claim cannot cite a verse, SIA does not make it. The language model only chooses wording — never the astrology.
English and हिन्दी, end to end
Chart labels, daśā tables, readings — the whole experience in both languages, with full Devanagari for the rāśis, nakṣatras and grahas.
One engine, the whole jyotiṣa toolkit.
Janam Kundli
Your full natal chart, cast from first principles, with a verse-cited reading you can question.
Kundali Milan
36-guṇa aṣṭakūṭa matching with doṣas and per-partner BPHS indications — deterministic, cited, no guesswork.
Vimśottarī Daśā
Your planetary periods on a timeline, each phase read in its own right.
16 divisional charts
The ṣoḍaśavarga — from the D-9 navāṃśa to the D-60 — each governing its own domain of life.
Muhūrta
The auspicious window for what you are planning, computed for your place and moment.
Full kundali report
A multi-page classical analysis of the whole chart, as a shareable PDF.
From birth details to a sourced reading, in three steps.
Enter your birth details
Date, exact time, and place. That is all the engine needs.
SIA computes your chart
From the Sūryasiddhānta’s own algorithm — the same maths the texts describe, not a lookup.
Ask anything, see the source
Every line of your reading points back to the classical verse it rests on.
Five classical texts. Nothing uncited.
Straight answers.
Is my kundli free?
Yes. Create a free account and cast your janam kundli — see your chart, daśā and divisional charts at no cost. The full verse-cited written report is the paid upgrade.
What is Kundli Milan / Gun Milan?
The traditional 36-guṇa aṣṭakūṭa compatibility score between two charts, with the doṣas and per-partner indications from BPHS chapter 15 — computed deterministically, every point cited.
How is this different from other astrology apps?
Everywhere else, an unnamed model writes confident prose from nothing. In SIA the astrology is computed, and every interpretive sentence carries the classical verse it came from — so you can check the source.
Is it available in Hindi?
Yes — the entire experience is bilingual, with full Devanagari for rāśis, nakṣatras and grahas. Switch anytime.
Which texts is it based on?
The Bṛhat Parāśara Horā Śāstra as the backbone, plus Sāravalī, Phaladīpikā, Ṣaṭpañcāśikā and Praśna Mārga — five classical texts in all.