In Section 125 cr.p.c. case it is your responsibility to prove that there is sufficient reason for leaving your husband and matrimonial house. Cruelty, physical and mental harassment, inlaws' over-interference in matrimonial life, dowry demand, husband's way-ward behaviour including extra-marital affiar, penchant for alcohol etc. are some of the reasons why the wife leaves husband's companionship. Your daughter would definitely get the maintenance. As far as you are concerned, as you are a Govt. employee, the emoluments husband and wife get would be looked into and life style of the spouses by the court before considering the wife's prayer for maintenance.