1) The Hon'ble Supreme Court has cleared this position in Uma devi case that any contractor employee who has not been recruited through a normal general procedure even if he completes 240 days or more, he cannot seek permanency

2) you cannot claim permanent govt job . your appointment letter must have contained the the express condition, inter alia, therein that on expiry of contract such contract be renewed but such engagement will not be regularised in future in any manner whatsoever

3) you can seek stay of your termination but chances of success are bleak

Since your services have been terminated the order of termination can be challenged before the High Court or the Labour court on the ground that the termination is illegal and arbitrary. Stay can be sought and granted. It is trite law that contractual employees cannot claim regularization in the absence of a contract to the contrary.