Celebrating Valentine's day on February 14th of every year does not come under the Indian culture because for us Worshiping the god the Kama is the culture. But there are no rules and restrictions to follow other cultures, especially, we Indians do follow various cultures, thanks to democracy and secularism. Hence, due to globalization, we Indians have been celebrating Valentine's day since the '90s, which means we started celebrating in the millennial era. Previously, this date went unnoticed and because of commercials, this date became quite famous, indeed a status of every person in India.
After a few years, people started celebrating the whole week, like how westerners celebrate the whole second week of February. A single day got elaborated to a whole week of celebrating love, which is kind of romantic and make a person get excited and engaged to his partner for a whole week under the name of Love. It starts with Rose Day, Propose Day, Chocolate Day, Teddy Day, Promise Day, Kiss Day, Hug Day and finally, Valentine's day! Every single day is dedicated to every single aspect of romanticism between two persons. Some are materialistic and some are emotional, but everything is connected to the feeling of love. Like how Roses, Chocolates, Teddy bears become some of the forms of showcasing love, warm hugs, intense kisses, true promises and adorable propose also become the purest forms of expressing love.