Why do you suppose they call it ex-communication? (You are thrown out of the community by the church.) It might be that they think that you don't get it.

Hindi rituals are inseparable from Hindi communities....as long as you are just along for the ride eating the food drinking the tea
....you can "pass" for religious.....but if you value your honesty integrity and leadership potential for your community....you need to develop unique political skills outside what is expected of you from believers.....to be an elected Atheist or a business leader what you offer has to be what customers or voters want....find an Atheist mentor and try what works for her/him

It is said that to have one true friend in this world is to be truly blessed, When you leave the religious group that contains all your "friends" most if not all will no longer associate with you. You are a bad influence. Hanging with you makes them suspect in the eyes of the rest. In fact, JW, Mormans, Scientology, have rules against cavorting with outliers. Especially if you are family. They want to shame you, make an example out of you.
My advice? Move away to a larger town, blend in, find new friends. Reach out occasionally to family and friends just to say HI and I'm OK. Look for secular groups.
Most of all. You have to accept yourself first. You are most important. Be happy to spend some time with your fabulous self. You're on sabbatical.
Please get away from them and away from your constant need to be accepted.

If your community was religious then I suspectthey are one and the same.

Religion is the easiest and most organic source of community in many areas. Or more precisely, it IS the community. When you leave religion in some areas, in the eyes of most people, you're voluntarily putting yourself on the outside by crapping all over everything they hold dear as a group.

It's not fair, but you do quickly find out who your real friends are. Unfortunately: possibly no one.

Alternative sources of community abound, some of them not much better or themselves not religion-free (e.g., lodges) and some of them more a source of incidental friendship that may be more casual and less committed than you'd prefer (civic organizations, secular charities, the work world).

If you can stand the prevelance of the sometimes strident social justice warriors / activists they often harbor, the Unitarian Universalist congregations don't require you to subscribe to a creed (including belief in god) and so most are quite tolerant of atheists and agnostics in their midst.