How does it begins????? Either from the nearest railway station or from the airport.
Your first destination to begin with your Sikkim tour would be Gangtok (East Sikkim). Lets find out how to reach Gangtok.
The nearest airport from Sikkim is Bagdogra and railway station is New Jalpaiguri (NJP).
If you are arriving at NJP, below are the budget and comfort wise options to choose from to travel to Gangtok:
1) You can take an auto from NJP station to Silliguri bus stand where you can find several sharing cabs/taxis heading towards gangtok, cost around INR 350 pp. (These taxis are heavily loaded, approx 10-11 people in 1 cab and the journey is of 4-5 hours).
2) You can opt for a comfortable sharing cab ride by booking a seat through wizzride.com, cost INR 750/pp and there are maximum 5 person in a car as per seat availability.
3) If budget is not a problem for you, you can hire a private cab to reach Gangtok which costs around INR 3000. Alternatively, if you have already booked your sightseeing cab in Gangtok you can ask the pick up to be included for extra cost.
Alternatively, if you are arriving at Bagdogra airport, you only have option 2 and option 3 to travel to Gangtok.
1) Travel time from Silliguri/Bagdogra to Sikkim is 4-5 hours. Hence, opt for early reaching options.
2) Bagdogra is a defence airport and shuts down at 6:30 pm.
3) If you are planning to opt for cabs through wizzride.com from Bagdogra, their last cab leaves at 6:30 pm, post which the only option would be to hire a private cab. And by any chance if your flight is delayed you might have to either waste one day by staying at Bagdogra/Silliguri basis the options available or would have to pay way extra charges for private cabs.
4) If you are opting for private cabs after 7, make sure those cabs are Sikkim registered and not West Bengal registered. As WB cars are allowed upto a certain limit in Gangtok and can also be stopped at Police check posts during night travels. The main reason why private cabs from Bagdogra either denies to travel to Gangtok after 7 or charges extra.