Good physio therapy center in India/Calcutta

Hi,

My father suffered from stroke a year back and was diagnosed with COPD and the stroke impacted his left side.He has not fully recovered yet and have problem walking specially maintaining balance, gait etc. I am having a hard time finding trained physiotherapist where my father lives (suburb of calcutta). I am wondering if anyone can suggest a reputed physiotherapy center where I can probably take my father for couple of weeks session.

Thanks