It depends on where and how long you work. Every hospital has different pay. You can also take up freelance and open your own clinic or collaborate with hospitals to offer your service .It can go to 30 lakhs rupees per month if you are a good orthopaedist.
My cousin has passed MS in Orthopaedy from Santosh university and he has joined a hospital and he earns decently around 3 lakhs per month.