Legal opinion needed for service agreement HCL Comnet

Dear Experts,

I may seem foolish but i did it when i was stressed and was desperate. Okay - now the question;
I joined HCL in 6/6/2006 and moved to Noida office ( I had told the HR before joining that I will not be intestested in doing full night shifts and they agreed but verbally).

I had to go to USA on some project work and I signed a bond called ' Training agreement' before I go, I succesfully completed the project migration with lots of appreciation from the CEO of the client company and others from the HCL top management.

After i came back and start working in Noida office I had faced lots of internal politics and some health problems as the weather in Noida was not suited for me and hence I had asked for a transfer to Chennai.

I got transfer to Chennai but the profile again was not good and was full night shifts and decided to leave the company after completing 1 year.

After I put my resignation I asked to pay 5 Lacs and I negotiated with the company i m joining and i paid from my own fund but the company I joined ditched me on the payment

I kept quite for 2 years but I could not digest that amount that I paid and want to know is there any possibility to legally recover that amount

The agreement said only overseas training bond and I never had any training in USA and I was fully worked on project migration

I left HCL Comnet in 7/6/07 exactly a year after my joining date and I signed a service agreement with them for 1 year.

When I leave I was told that I need to pay 5 Lacs otherwise my releaving letter will not be given and I also signed a other bond when I went to USA for project migration and that bond was called overseas training agreement bond which was effective from 9/06 till 9/7.

When I looked at the full and final settlement letter that was issued by HCL Comnet It says that 5 lacs recovered towards the service agreement and how can they do that since I have completed 1 year service with the company and that bond is invalid.

Now, after two years I woke up but never too late .

Can anyone tell me how can i proceed legally to recover 5 Lacs from that company. I dont mind loosing another 1 Lakh rupees towards court expenses but I want to know what are the chances are winning this case.
Your advice on this is highly appreciated