Divorce by mutual consent

Hi,

I am Kiran, me and my wife want to file divorce by mutal consent as i agreed to pay 8 lacks to her .

but her parents asking me  to pay half of the money  by hand before filing the case . i think its not good for me.

can anybody suggest me what type of agreements should be done before pay the money ?  please suggest me correct procedings to before pay money .

Thanks,

S.Rama Kiran.