Our purpose: unity in diversity

Why we built OIOA

Walk down almost any street in India and you’ll find a temple bell, the call to prayer, a derasar, an agiary and a gurdwara within a short distance of one another. Neighbours share sweets on Diwali and Eid, wish each other on Navroz and Gurpurab, and ask after each other’s fasts during Paryushan and Ramadan. That everyday closeness is India at its best.

Yet the tools we use to keep track of our days have mostly been built for one community at a time. A Hindu family keeps a panchang, a Muslim family a prayer timetable, a Jain family a jantri, a Parsi family a Roj–Mah calendar, a Sikh family a Nanakshahi jantri. OIOA, One India One App, brings them together: one app where every community’s calendar sits side by side, with the same care.

It is a humble attempt. We don’t claim to speak for any faith, and we know we will not get everything right. But we believe that putting every community’s days under one roof is a small, real way to show the brotherhood and true nationalism we already share.

What we believe

Every community deserves the same care. In OIOA, no community is primary and none is “other”. Each has its own Home screen, with the same depth. On this website, communities are always listed alphabetically, and each is given the same visual weight.

We do not discriminate. OIOA does not discriminate on religion, caste, creed, community, gender, language, region or colour. Nothing in the app ranks, filters or excludes anyone on any of these grounds.

Every tradition’s own way of reckoning time is respected. Traditions within a community don’t always agree on how to calculate a date. OIOA doesn’t choose between them: where communities follow different methods, such as Jain sect calendars, Islamic prayer-time methods, the three Parsi calendars or the two Nanakshahi versions, you choose the one you follow.

Your own authority comes first. OIOA calculates carefully, but for the day your family observes, please follow your own community’s religious authority. We’re a guide, not a replacement for your priest, imam, sadhu-sadhvi, mobed or granthi. The disclaimer says this plainly.

Language should never be a barrier. OIOA is available in English and 13 Indian and regional languages, and more are welcome. See languages.

We are open, and we can be corrected. OIOA is open to adding any community that asks. If we’ve missed something or got something wrong, we want to know, and we’ll say publicly what we’ve changed.

What OIOA is not

• Not political. OIOA takes no political positions and makes no comparisons between communities.
• Not affiliated. OIOA is independent. It is not affiliated with any religious, sectarian or governmental body.
• Not a religious authority. It shows calendars and timings calculated by traditional and astronomical methods. It doesn’t issue rulings on practice.
• Not finished. It never will be. Every community that joins and every correction we receive makes it better.

How you can help

1. Request a community that isn’t in OIOA yet, or a sect, calendar or language.
2. Tell us what we missed in a community that is.
3. Follow the roadmap to see what’s live, what’s coming and what’s being reviewed.
4. Share OIOA with a neighbour from another community, and wish them on their festival.

The communities in OIOA today