Salary withheld

Sir, I am working with one of indian pharma company as sales manager for Mali , Africa. I joined this company in the month of May 2016. Since it was 4 year contract job with facility of 15 days paid leave once in a year, I came back to India in the month of october ( 25 th October 2016 ) to address medical issue of my child with proper permission and sanction from the company. It was well informed to the company that i will be going back to Mali 0n 21 st November 2016. But surprisingly , company didnt released my salary of October month as expected in the first week of November. After so many reminders and even request too , company didnt released it. And i avoid myself from resuming on duties. Whatever communications i had with company , is from company generated email id and 2 days before they blocked my email id too , by getting my password through one of my company colleague. So i dont have any documents and proofs of my communications , kindly suggest me how to go ahead in this matter.