The next employer should buy your notice period and pay it at once on joining without any conditions and absorb you on the strength of copy of resignation only and should not demand service certificate/relieving letter. From your side you must state in writing that you can supply only the copy of resignation and its proof of dispatch and delivery and can supply (if and only if ) service certificate/relieving letter ::::: if and only if it is supplied by the company to you.
You should provide full information, pointwise!
What is this establishment registered as: Commercial,Industrial?
What is its line of business:IT,ITeS,banking etc?
How many maxmimum persons are employed in it at any point of time?
The Redg Office,Corporate Office of the company, and your reporting office was located in which state?
What was your designation and nature of duties?
Do you have leave policy, HR policy,Service Rules and Regulations,Conduct and Discipline Rules that are mentioned in the appointment letter?
Was any appointment letter,salary slip of each month,PF number with a/c slips,ESIC card,Form16 given to you?
Did you resign in writing under proper acknowledgment (followed by letter under acknowledgment or by Redg. Post) , and mention NO tasks are pending at your end and to whom you should handover the charge?
Has acknowledgment of notice of resignation, supplied to you?
Are you a member of any employee’s/Trade Unions?
What was your monthly salary?