Hi Megha! My hometown is near Darjeeling. It's a beautiful place. Actually it's a part of North Bengal, hence there are more places to visit. Let me jot them down for you.
Jiti-Bhutan (you can spend a day in Bhutan as well)
There are many more points which you will come across while traveling. Don't miss out to click in those places.. And all these places are must visit types.
Any further help, feel free to ping me.