Hello Bharti123,
(Cite Contribution) is right.
You need to make a choice: whether you want to clear this obstacle & get moving in life OR drag the matter endlessly. Just notice that your case seems to be surely moving in a legal direction--which if it becomes true will only end-up in sapping your energy as well as consuming a lot of your time.
Begin to learn to face the consequences of your actions Bharti. Sooner the better. I know this could be very curt--but having seen quite a few IT people taking decisions without any concern for the rules [basically developing a the-company-will-have-to-agree temperment] and then facing the consequences--sort of act-in-haste-and-repent-at-leisure situations. How did you apply for HSMP knowing very well that you need to move out of TCS properly? Whether you did this on your own or were led into it by some GREAT advice, I am not sure--but realise that it's YOU who is facing the music.
It's surprising that you feel the root cause of this situation is TCS, when it's YOUR ACTIONS that led to it. Had you cared to plan things out with BOTH your's AND TCS's concerns/priorities/interests in mind, you definitely wouldn't have landed into this soup. Also pl thank your stars that they only asked you for the payment--sort of penalty. They didn't file a case right away [though you can bet they will if you dodge any further]--which would have made your life miserable & possibly ensured you wouldn't get any other job too as long as the case is decided [you know how long our Indian Courts take to decide matters].
Coming to your present predicament, suggest meet HR and try to get the amount reduced [pl don't bank on this to materialise--but neverthless give it a try] and move out smoothly to the best extent possible. Basically you don't have a choice EXCEPT to get the best bargain of what they are asking.
Rgds,
TS