first of all, do not blame lawyer for everything.. i am sure he might have done the right thing acording to the situation in your case.
and still if you have any problem with your present lawyer then tell the respective judge on the NDOH that you want to change your lawyer and provide you with some time for further proceedngs.
anyways 498a is the golden weapon for indian wives against husbands and its hard to get rid of (i did not meant to discourage you)
she has filed for annulment and i am afraid you can not stop it by any way. the best defense for this is if you could prove that she is living in adultry or having extra marital affais, for that you might need a top notch lawyer. (seems impossible in your case as you did not mentioned the full situation)
even if you get the divorce peacefully then section 125 of CrPC will be waiting for you.
my advice to you:
1. either hire a top lawyer who is expert in these case
2. or solve the problem peacefuly with your wife and get the divorce done on another grounds (if possible)
but even if the 406 IPC is dropped still 498a is enough to steal your night sleeps.
so be calm and if you want to file complain against your current lawyer then go to the bar association and complain to the chairman of bar.