Ground of divorce to be filled

Hi, I am 31 yrs old just married to a girl who happens to be my Girlfriend for quite a long time but just before my wedding I realized that I do not have any feelings for her and our relationship went sour, which however was the situation for a long time.We have been in relation for a long time but it was mostly long distance and we used to fight a lot. 2 years back when i was not very stable in my career i could not give her time stating which she had an affair with a married guy but I tried to move on and forget and forgive her and decided to marry her thinking it was a mistake from her side. just before my wedding i met a girl speaking to whom i realized it would be a mistake to get married and told everyone but due to societal pressure and commitment my family members and she forced me into the wedding and now both of us are suffering. Everyone thinks that it is because that girl is into black magic and framed me it was a correct decision.and now everyday is only fights and agony. please let me know on what grounds i can file for a divorce?