1. Send a legal notice through a Lawyer at once to the management of Sahara Prime City Ltd to pay your 6 months' salary immediately.
2. If it does not work, complain to the Regional Labour Commissioner about the same.
3. You need not resign from the Company at the moment till you recover your salary in full from the Sahara Prime City Ltd.
4. Is yours an isolated case or other employees are also facing the same problem.
5. You can form a group of such employees who are not paid salary regularly and take the management to task by initiating the proceedings in Labour Court
6. Chances of your recovering your dues are quite high.