Hey Sadiya, There are a lot of restaurants and cafes of various cuisines on MG Marg. I personally would recommend a meal at Apna Dhaba restaurant which is below the SBI MG marg branch. We went there twice in our 2 day stay. We had Butter chicken and biryani there. Other places you can try: 1. The Dragon Wok 2. MGM 3. The square Hope this would help you.
Taste of Tibet for Tibetan food Gangtok groove Dragon wok coffee shop The square . All these places are nice . Specially recommended by a friend from Gangtok.