Alchemist Infra Realty — delay in payment of maturity amount

I had invested rs. 20, 000/- in 'alchemist infra realty limited', vide certificate no. Re02228070 and allotment no. Airl/re00199097 on 07/09/2012. Maturity date was 07/09/2018. But, the company is yet not refunding the matured amount of rs. 40, 000/- i am also working in this very company last 10 years.
A huge numbers of investors invest their money in above said company through me. They are also still waited for their matured amount which is yet to be refunded.

Therefore, i request you to kindly solve this issue and obliged us.

Thanking you.