1) since notice has received by your family member you should engage a lawyer and appear in court .if you do t appear court can proceed Ex parte against you
2) notice has been served upon you
3) you can make application for setting aside exparte order
4) you are at liberty to go to your matrimonial home and collect your personal belongings
5) you can make application directing husband to file his income tax returns
6) you do t have any evidence against father in law
7) do t make any such allegations