Resignation Without Appointment Letter & Contract - Legal Action

I had joined a company on 23 June this year i was under probation for 2 months. at time of joining i was given only a general offer letter wherein nothing was mentioned about serving a notice period. I had paid Rs 10,000 as deposit, which they will give back after one years completion. After 2 weeks of working I decide to move to another company (i.e. resign from the present company). I have not received any salary for the month of June, nor do I seek to receive it.
I didn't receive any appointment letter or Contract letter and I choose to resign without giving any notice period. But, now the HR wants me to Sign the Contract and Appointment letter in order to process my resignation.
According to the Contract (not signed), I have to pay additional 2 weeks of basic salary to the company if I leave without the 2 weeks of prior notice, plus the 10,000 will be taken by the company.
Am i bound to listen to them? Can i get a relieving letter without signing the contract and appointment letter? Can they take any legal action against me?

As, I have not signed any contract and Appointment letter, Can I get back the 10,000 Rs and also the Resignation.

From what you have mentioned the company is trying to extort money from you.
Asking for security deposit of Rs10000 is wrong practice.
Please take help of a local lawyer and initiate legal action against the company.
They will be forced to refund Rs10000 and releive you properly.

Dear .....
Hope U must have deposited rs.10,000/- thro' Banker's cheque or DD. Any type of deposit if U have not been provided any regular training is not legal.
At this stage, U R not bound to to sign any Contract letter. Please make sure U have already sent U Resignation Letter properly.
But U may have to take some Legal action or approach the Labour Commissioner to get refund of Ur deposit.
Regards.