After Maternity - Work From Home & Extension Of Leave Without Pay Denied.

I work with MNC in Bangalore and my six month paid maternity leave expired in first week of Dec-2018. My request for extension of leave without pay was denied and option to Work From Home has also been denied by HR. I have been presented only two options - Report to work or Resign. Employer does not have Creche Facility as per Maternity Benefit (Amendment) Act 2017 and hence reporting to work with my kid is not an option. Resignation by paying 3 months gross salary (notice period is 3 months) also seems illegal because when employees are forced to leave by company or terminated, they are given Basic Pay only and not other components of salary. Most importantly, the project of company on which i work will return back to client starting Feb 2019. It appears HR would want me to leave company so that they do not have to look for another job as well profit from 3 months Gross Pay. Prima facie company is violating several rules like - 01. Not having creche facility. 02. Not extending leave without pay. 03. Not providing Work from Home option. 04. Asking for Gross Salary for notice period. I wanted to know how to i enforce and safeguard myself from unethical and illegal practices of company ? What all legal options are available for a working women ?