Thanks for all the advices... As the organization wanted me to take the legal route (they sent me the legal notice earlier, at the time of separation) I avoided the same as it means falling in their trap and denying the opportunity for employment. I was way above the Manager over there and and they put every efforts to communicate my current employer too by bad mouthing through registered post. I survived that by telling everything upfront to my current employer in the first meeting itself. I have copy with me of that communication. They fiddled with my name in EPF account, I handled that and having proof of that. They sounded me to the authorities, got the proof of it. And what not!! The legal, I will go only at the last resort but positioning myself for law studies... Sometimes, I have to stand up and show the mirror. By the way, some of world's first are credited to my name through that organization and I am still proud of that association.