India has many religions and is a predominantly religious society; and I come from a generically and conventionally religious family. Indian women belonging to any faith are likely to be especially religious because men are expected to be the pillars of the wider social community but women are expected to be the real pillars of the religion and its rituals, and also to teach their children to have strong and unquestioning religious faith.
You might also have to learn not to overly proclaim your atheism to the local community at large, now and in future, wherever you live now and wherever you may go later. Keep your unbelief in your own mind and do not challenge orthodoxy. Religion is taken very seriously in many parts of India and by Indians living in many parts of the world. So too inby many other nations and cultures. Your unbelief is your own business, but you will soon learn to tolerate some token display of religiosity in order to purchase peace and keep a low profile, so that you can concentrate on achieving what you really want in your life!