Nestaway Technologies Pvt Ltd - Security Deposit not refunded

I have rented an apartment from Nestaway in Hyderabad (G-***, Bhavya's Tulsivanam Apartment) Located in Kukatpalli Hyderabad. I paid a security deposit of ***** while renting out this flat. Maintainance charges were included in the rent as i was paying the rent which was more that the market price.
I submit the checkout request well in advance for moveout on **st August **** and got the inspection and society formalities done. Society charged me **** Rs for the maintainance for the period wherein i was not staying in the apartment. While i discussed this with Regional manager Balaji from Nestaway he confirmed that i will get this money back. As per schedule I moved out of the flat on **st August at *.** AM IST. Thereafter i am chasing Nestaway for my money and only **** Rs is given out of ***** Rs which they have to pay me. No one from Nestaway is responding. Tried logging complaint with MyGate and they have terminated my account from society. I feel cheated and Appreciate your kind help.