1) it is necessary to peruse your appointment letter to advise
2) if company has issued you termination letter it is bound to pay you salary for the notrice period as per terms of your contract
3) in your case it appears company is willing to pay you 3 months salary
4) you are not entitled to any job within the company .
5) you would be entitled to your gratuity if you have worked for organisation for aroyund 5 years and your provident fund dues