Sitar teachers in Varanasi

I am interested in learning Sitar and will be going to Varanasi for 3-4 months. I know the city has a lot of great Indian classical musicians. Can someone please recommend good Sitar teachers there for a beginner? I have taken a few basic lessons from a teacher in Rishikesh and really enjoyed my time practicing with Sitar. Therefore, looking for a long-term teacher.