How to recover dues for work from home job profile

I am a finance professional working as confirmed employee with a private limited company since June’14, back in start of sept’16 I met with a bike accident causing multiple fractures, forcing me to stay at home as per medical advise for 2 months. I had informed my company and mailed them all reports and doctor’s case papers, during the above period I was working from home as communicated to my reporting manager on mail & whatsapp. However, I was only paid only for 7 days, out of the total 50 days work from home. I had submitted each and every details of the work done to my manager. He kept on delaying balance payment assuring to decide and pay shortly. Because of the above and no appraisal being conducted I tendered my resignation in mid-March’17 with 2 months, notice period to be served. Kindly let me know if there is any way I can recovery the balance pay for work for home done by me.