2nd December 2012 From India , Delhi
This is to bring to your kind notice if any companies stated that should work for these many years and getting signature from the employees in any bond or agreement is known as slavery.
As per the law it consider as slavery (we can take action in the slavery act on the company)
They cannot do any thing with the bond if they sue in any ways they will get caught from law, so don't worry about the letter which you received from your ex-company.
29th January 2013 From India, Chennai