Exparte divorce and later wife asking maintenance

My wife filed petition for the divorce on the grounds of impotency without asking any alimony in petition. As soon as I received petition, I contacted my lawyer for further process. My lawyer said that, no need to worry and said that your wife is asking for divorce without alimony, you don't attend court and finally court will order exparte divorce in the end, however she has not asked alimony. My lawyer contacted to my wife lawyer and lawyer of my wife also said that I will not ask alimony and we just need divorce. According to suggestion of my lawyer, I didn't attend court and after 5 months divorce sanctioned by court. Lawyer of my wife contacted my lawyer for handing over items of my wife left in my house , on the same day he will give judgement copy and final divorce order copy. As per the lawyer said, I handed over her items to my wife parents and collected judgement and divorce copies. My lawyer has taken received sign of my parents while handing over of her belonging items. After 4 months of divorce, I received one more petition from my wife side lawyer on sec 125 CrPC maintenance. I got scared. What should I do?? Pl advise