Sherathang is a town in Gangtok district near the Nathu La Pass in Sikkim, India.

The location has been identified as the site for excise, customs and checking for trade between India and China.

A regular scheduled international mail exchange between India Post and China takes place here twice a week.

In 2003, the governments of India and China agreed to use these locations as designated border trade mart.

Geographical remoteness and extreme weather, frequent blizzards and wide-ranging temperatures – between -10 and 20 C in the summer – make managing a power station a herculean task.