Termination without salary support

Greetings to all, My name is sapna I have joined the organisation named Temenos+Agility a unit of VD Indus pvt Ltd on July 1st 2015 with a pay of 25000 per month and even fixed bonus 10000 per month with 3 months notice period. so on february5rmth 2016 they terminated on the grounds of non performance with a verbal communication saying they will give me 90 days salary support immediately. I accepted but they paid only for Feb month salary and March they didn't and now they are saying there is no evidence of my work so they will not pay my salary and even the offer doesn't have any clause for termination. they don't have proper hr documents. they have deducted PF amount but nothe given PF account number. I told don't give my bonus atleast give PF amount salary and mobile bill. they are saying no I am singal parent need money 1. What is the best way to explain management 2. I am eligible or not for the salary support 3. how can I get my payment 4. whom should I approach