Income Tax relief when salary is not paid

Dear Team,

I was working in a Private Limited Company in Bangalore. Due to some financial crisis, Employer not paid Salary for various months in different Finanical years. Howsoever, Income Tax was deducted promptly and reflected in Form 16. 

Based on this Income Tax Form 16 declaration, I've filed Income Tax returns before due date in each financial year.

Is there any provision to claim or to get relief from Income Tax authorities? Need your support.

Thanks