Dear querist, you have to follow the court orders.
Later point of time, you can go for the alteration. but not now.
These are the circumstances where it would be advisable to go for application under 127 CrPC for alteration of the maintenance amount.
Retirement of husband.
Loss of job of Husband
wife become earning member herself is change in circumstances(PN Manikkuttan Nair V. KR Cirija Amma 2000 Cri LJ 3726)
Section 127 can also be used to cancellation of maintenance on varied circumstances.