Gangtok is the capital city of sikkim located in the northeastern region of india. Its a very breathtaking place to visit. If u have to reach gangtok by road then first u have to reach siliguri from there you get lots of commercial vehicles that can take u to gangtok. On the way u can see coronation bridge that leads to bhutan. The best time to visit is during
Winter if u want to feel snow fall or u can visit during march april months the time of flowers to blossom amd I would recommend u visit yumthang valley during springs. Theres lot of places to visit in gangtok like hanuman tok, yumthang valley, lakes and u can have a yak ride. The place is very clean and also the locals maintain the cleanliness.