Dear Ankita,
It appears that your employer wanted to recover the maternity benefits that he has provided to you, albeit partially. That is why he wanted to suspend benefits like CL, etc., for you. However, any employee benefit, if it is there, has to be uniform, and the employer cannot isolate anyone. Moreover, employee leave is a statutory benefit and cannot be snatched from the eligible employees. The decision is aristocratic and gives a semblance of medieval times.
Now you have the following options to choose from:
a) You may talk to HR and find out why these kinds of restrictions were imposed on you. Secondly, how long will these restrictions last? Will it be for the rest of the year or more than that? If you are not satisfied, then you may put up an application with the highest authority and seek the restoration of your benefits. The benefit of this application is that you will come to know whether the instructions have come from the top or if it is the handiwork of HR. Most probably it will be the former rather than the latter.
b) If you are not satisfied with (a), then you may approach the Labour Officer (LO) of your area and make a formal complaint for depriving the leave benefits. Now whether LO will intervene or not will depend on your position. However, if he intervenes, your employer may perceive it as your belligerence, and they may try to fix some other issue with you. Framing juniors is never difficult for the seniors. Therefore, be cautious!
c) The last option is just to keep quiet. Your employers were considerate towards your request for the extension of your maternity leave. It could be Leave Without Pay (LWP) also; however, sparing a resource for an additional six months is not that easy. They have allowed you to continue your employment even after such a long absence. This could be in view of your six years of service and maybe your performance record. What if they had not acceded to your request? If not the type of hardship that you are facing now, but you would have faced a hardship of a different kind.
Anyway, more than half of the calendar year is already over. You may bear with these restrictions for the rest of the calendar year and accept it as your quid pro quo.
I have given three options; which to choose is your call.
Thanks,
Dinesh Divekar