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 maximum persons are employed in it at any point of time, before and after your joining?
Did you record the statements (audio/visual/minuted/witnessed) regarding payment of your salary etc?
The Redg Office,Corporate Office of the company, and your reporting office was located in which state?
You were 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, Exit Policy that are mentioned in the appointment letter?
What was your monthly salary?
Was any appointment letter, salary slip of each month, PF number with a/c slips,ESIC card,Form16 given to you?
What is the notice period inserted in your appointment letter?
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, handover of charge/assets supplied to you?
Are you a member of any employee’s/Trade Unions?