Company forcing me to get relieved immediately when I'm serving my Notice Period

Dear All, I am facing a very unusual situation in my career at this point. I've been working with a well known NBFC named Shubham Housing Development Finance Company Ltd since last one year. Current I've got a good opportunity in other organization which I personally feel is way better for my career growth. So, I chose to move to new organization and resigned from my current post of Branch Manager(Confirmed- On Roll Employee) from my current organization in the month of Dec. Now after serving notice period of approx 1.5 months, my organization tried all the way to retain me by giving great hopes to my career and also by giving monetary hopes in my salary. But at last when I said No to all the offers, now they are forcing me to get relieved immediately without getting any pay for my remaining Notice period. Being working in sales, they are pointing out on the performance and etc to describe the situation and ordering me to get relieved immediately. I'm really concerned about my Experience/ Relieving letter. and also the salary amount which is expected to be credited to me every month because Monetary support is really important while away from family. I want help from you all on this regard if they have the right to relieve me without my consent from the organization and can they stop or manipulate the system by showing fake reasons on my name to stop giving me salary and experience/relieving letter from the organization. Pls help.