5 Day and 4 Night North Bengal Tour

Hi, we are planning a trip to north Bengal by reaching NJP on 15th April by train from Kolkata and Our return is on 20th April From NJP. We are planning to visit Darjeeling, Kalimpong, Lava Lolegaon, Mirik and maybe Shitong also. Can you please guide a better Itinerary which helps us a peaceful visit and relaxation? We are also worried about the 17th of April election day.