Can I file annulment petition

I got married in Dec 2018. After 3 weeks of marriage, I was surprised and shocked when my wife had 5 to 6 repeated epilepsy attacks. After she gain conscious, wife revealed that she is suffering from Epilepsy and she was under treatment from a Neuro Doctor. Doctor also confirmed the same. I found her previous medical papers and found that she was under treatment even before marriage. Even though my wife and her family knew that she is suffering from Epilepsy which are dreaded and life-time diseases, they CONCEALED it intentionally before our marriage, which is a FRAUD. As advised by doctor, I took her for regular Doctor check-ups. But even then, she has recurrent epilepsy attacks every 2 months. Doctor used to increase the dose and gave additional medicines in every visit and finally in June'19, Doctor informed that she has to continue her medicine for atleast next 5 years. While me and my family had soft corner on my wife, she started I’ll-treating my parents and sisters by providing stale food, not preparing the food in time and questioning the purpose of their visit. When I finally questioned her in june'19, She left my home and logded a false 498a case on me and my family and demanding money in PS. Kindly advise how do I proceed now and advise if I can lodge a Annulment Petition pls ? Thanks !