After threatening them to get my connection terminated, finally I was offered V-Fibre at last. However, max speeds are only 16mbps (though better than 8mbps i get currently). Also, got offered, 160gb for Rs 899. Sounds pretty decent.
However, in the mail it was mentioned it will take 10 days, so let's see if migration really happens. Just 2 months back, I was told that V-Fibre technology wasn't available in my area. So not sure, if it's BS or for real.