Health issues

I got married on Nov 24, 2016. It was a arranged marriage. After engagement I had issues with my then fiance and went with my relatives to cancel the marriage. But my mother in law and fiance cried a lot and I again agreed for marriage. It took place 4 months before. Later on we had lot of issues with each other. I took her to honeymoon trip for 9 days North Indian tour. My wife stays at her home only, not mine stating that she has an online job. We mainly stayed together during our honeymoon trip only. We once didn't have sexual intercourse. I personally do not have any health issues but my wife and her parents is asking for divorce stating that I am impotent. They say they will charge case against me for hiding it. I didn't do any such check up before marriage. If now during the test if it's found I am having some issues what wil b my fate? I didn't try to cheat anyone but they are going to sue me for that.. I just married since my parents insisted. I am from a poor family but have a good job but my spouse family is upper middle class. Just help me out a bit