Sahara India Pariwar — not getting out invested money

Address:

Vapi, Valsad, Gujarat

I hv invested money since 2012.. Nd now it's being around 15 lacks.. I asked agent nd manager to refund our money.. They r giving all the time excuses that they can not do anything.. It's companies problem not theirs.. So now wat shd we do.. This amount is very big for us.. I can file a case.. Plz suggest wat shd i do.. How can i recover my money.. Can i file a case against manager.. Or is der any kind of solution dat can help me.. Plz solve this.. We are tired of this now.. Plz help