Salaries & settlements are not paid saying work record needs to be checked

Dear Sir,
I have served 8 yrs in a company and suddenly , i have been asked to leave without any notice.
It is 3 months now and i have been chasing for settlements and 3 months which were due are still not paid.
Repeated mail sent but no result except that they are saying past six months work record needs to be checked.
Until then they are not paying my dues.