For writers and researchers
Press and methodology
Vidhata is a free Vedic astrology service. It answers personal questions from a computed birth chart, in eleven languages, and publishes panchang, muhurat and festival dates from its own ephemeris engine.
Everything on this page is checkable. Figures were verified against the running system on 19 September 2026. If you find one that is out of date, please write to us and we will correct it rather than leave it standing.
01
How the dates are computed
The charts and calendars are computed rather than copied. Positions come from the Swiss Ephemeris, through our own compute layer, so a date on this site is derived from the same astronomical data an almanac is derived from, not transcribed from another site.
For the Hindu calendar that means the intercalary month, adhika maasa, is accounted for rather than ignored, which is the usual reason two sites disagree about a festival by a month. We compute tithi, nakshatra, yoga and karana, and from those the muhurat and choghadiya windows.
One honest limit, which matters if you are quoting a time. Panchang timings are local. A tithi begins and ends at a different clock time in Chennai than in Delhi, and traditions differ about which end of a day a festival attaches to. We compute for the location you ask for, and our published festival list follows the all India almanac convention. When a regional tradition differs, both can be correct, and we would rather say so than pretend to a single answer.
Charts use the Lahiri ayanamsa and the sidereal zodiac, which is the standard for Vedic astrology and the reason our positions differ from a Western horoscope by roughly 24 degrees.
02
Facts you can quote
- What it is
- A free Vedic astrology service, on the web and on Android.
- Languages
- Eleven. English and ten Indian languages: Hindi, Bengali, Telugu, Marathi, Tamil, Gujarati, Kannada, Punjabi, Odia and Malayalam. The AI answers are in those languages too, not only the interface.
- Ask Acharya
- A free AI astrologer that reads your own chart. Twenty five questions a day at no cost, with no payment details required.
- Free calculators
- Twenty two, covering lagna, nakshatra, dasha, Mangal dosha, Kaal Sarp, Sade Sati, gemstones, numerology and more. None of them requires an account.
- Other free tools
- Kundli, kundli matching, daily panchang, muhurat finder and daily horoscope generated from your own transits rather than your Sun sign.
- Compute engine
- Swiss Ephemeris, via our own wrapper. Lahiri ayanamsa, sidereal zodiac, with divisional charts.
- Price
- Nothing on the site is for sale at present.
- Founded by
- Ravi Ranjan.
We do not publish user counts, download figures or accuracy percentages. We have not audited those, so quoting them would be inviting you to repeat something we cannot stand behind.
03
Pages worth linking
- 2026 Hindu festival and muhurat calendarEvery major festival of the year with its muhurat window.
- Free kundliA full birth chart with divisional charts, no account needed.
- Kundli matchingGuna Milan and dosha checks for two charts.
- Daily panchangTithi, nakshatra, yoga, karana and the day’s windows for a chosen city.
- Muhurat finderAuspicious windows for a specific activity and date.
- Ask AcharyaThe free AI astrologer. Sign in required so the answer can use your chart.
04
Logos and boilerplate
Please use these rather than a screenshot of the site. The mark is a navamsa grid around a lamp flame.
- Wordmark lockup, SVG (preferred, scales cleanly)
- Wordmark lockup, PNG 1200 by 318
- Mark only, light background 512 square
- Mark only, dark background 512 square
Short, about 40 words
Vidhata is a free Vedic astrology service that answers personal questions from a computed birth chart, in English and ten Indian languages. It publishes panchang, muhurat and festival dates calculated with the Swiss Ephemeris, and offers twenty two free calculators that need no account.
Longer, about 100 words
Vidhata is a free Vedic astrology service built around one question: what does my own chart actually say. Its AI astrologer, Ask Acharya, reads a computed birth chart and answers in the reader’s own language, grounding what it says in the classical texts rather than in Sun sign generalities. Around it sit a full kundli with divisional charts, kundli matching, daily panchang and muhurat windows, and twenty two calculators that need no account. Positions are computed with the Swiss Ephemeris using the Lahiri ayanamsa, so published dates are derived rather than copied. It works in English and ten Indian languages, including the AI answers.
05
Contact
Write to contact@vidhata.app. It is read by a person.
If you need a timing broken down for a specific city, or a chart computed for a date you are writing about, ask and we will compute it for you. We are also happy to explain on the record why our date for a festival differs from someone else’s, which is usually a question about adhika maasa or about which regional convention is being followed.