Extension of Maternity leave

[Pranita]

1) I am working in central government since 9 years.
2) I am on maternity leave since birth of my baby i.e Sept 2016
3) After expiry of 6 months maternity leave I applied for extension in the form of child care leave / commuted leave / earned leave at different times.
4) Out of which 1 month Child care leave and 1 month commuted leave granted by competent authority to me.
5) Now competent authority has not granted further extension, withelding my pay and asked me to join duty immediately.
6) My child is 8 months old now and I wish to be with her in view of nourishment and development in her initial stage.
7) After joining my duties, I have to stay outside home from morning 8. 00 to evening 8 .00. This will be very difficult for me and my baby and can affect her health. Hence I wish extension of leave minimum for 2 months.

What should I do ?