Delaying F/F settlement

Dear Sir, I had worked (7 years 6 month) in Structural steel detailing pvt company, Bangalore suddenly closed on 24-August-2017 without given any notice period due to insufficient project. After one month Company had given F/F settlement copy followed by long document process. Later on one month, I have been paid partial final settlement amount. Still now company is not paid pending final settlement amount.. Now company vacated office from rental building. At present to communicate with Management people is very hard. Now our communication is through e-mail correspondence and rarely by phone & what’s app. Always they answered that discussion is going on with CEO and will pay you as soon. Our company CEO is in Dubai and running same business field and not giving response because of their internal issues.Hence final settlement is delaying more than 4 months. Please suggest how to proceed at this situation and get pending settlement.At present I am working in Chennai,Tamilnadu. Thanks and Regards Balakrishnan Bangalore-37 Cell no: [deleted]