Company asking for bond money even after serving bond and notice period - What should I do?

I am serving in an MNC. I had signed bond before 2 years which got completed on 25th August 2018. I resigned on 19th June. I am still serving notice period which will end soon. Although I am serving them. Even now, employer is asking me to pay bond money of 2 lakhs. As in the bond it is mentioned as:' I cannot resign or terminate or give reason for termination in these 2 years.'
There is similar case of my friend who resigned in may and got relieved also without paying anything. When I give them her example, they do not respond at all about it. I do not want to compare with her but when I ask why the policies are different for two different people, they just ignore and do not respond.
What should I do? I am in depression and I want experience letter and relieving letter.

Termination of a contract of employment becomes effective only on the date of completion of the notice period mentioned therein. If the date of expiry of the notice period actually falls after 25-08-2018 i.e., the date of completion of the 2 year bond, it becomes compliance of the bond by the employee. It is immaterial when the letter of resignation is submitted. Therefore, politely write back to the management highlighting this legal position.

You can also approach the Civil Court to formally declare the contract as terminated or rescinded with no breach.

Hi
You are in depression , this is what they want , they want to harass you as these " Bond " cases do not turn in to the favor of Employer in to the courts, hence they are just harassing you.
Hence do not go in to the depression, Instead have a polite discussion and continuous follow up with the company or key person who can help you to get out in this matter also you can take advise of the suitable advocate if you want to go in legal battle
Thanks
SMJ