I am hindu.I married in April 2012.after 15 days after marriage she started her behavior uncommon,two months later after I came to know she is patient of schizophrenia from last 5 years from some secret inquiry by my friend .this fact is kept totally hidden by her family and our society.I asked about her behavior to her parents they told me that this is also new to them why she behaves like this.actually they cheated me by suppressing the fact.now immediately I stopped all the relations.the girl is now living with her parents.we called meeting over the issue.but they immediately agreed for mutual divorce without mentioning her decease by both the parties.now what should I do.I need divorce but shall I keep my mouth shut for one and half year for mutual divorce or shall I opt for nullity of marriege.this is totally fraud.but after 1 year she may refuse to divorce and may demand alimony.I am 29 yr old and after waiting for one and and half year may be I will be grant divorce but then who will marry me my cast is very limited in number.please help me.court can seek patients documents of her treatment from hospital where treatment was going on.will the process ends within a year?they denied me for divorce on anullment ground.help me urgent what to do?