I have resigned from a company in August 2018, after taking a leave for about 2 months due to personal reasons. When I had resigned, I had no job activity pending on me as I had been on a leave and the job didn't require transition. Based on the discussion with my manager and the HR, I was relieved the same day from the company on return from my leave. I was informed after a month that I have to pay dues for shortage of notice period and then to collect the relieving documents. As I have changed course, I am in no need to obtain the relieving documents. But now, the company has sent me a mail that they are going to proceed legally to collect the dues. Is it really mandatory for me to pay it - as I find that I am not dependent on the documents and I have not created a loss for the company (say project loss or revenue loss). Please advise.