I was on oral contraceptive pills for 3 years and I have finally stopped. But in that window, it seems to have completely killed my desire for physical intimacy. I feel that my marriage is suffering because of lack of intimacy (from my side). What should I do?

The fact that you realise that the pills are the cause of your problem is good. You know you still want to get intimate with your husband all the same. So talk it out with him and seek his support. At the same time relax a bit and focus on the moment than on the fact that you are not able to be intimate. Fantasize a little bit too.