KTM comes under the Bajaj Autos and their service centers are available in 9 cities of Assam, which are Barpeta, Bongaigaon, Dibrugarh, Guwahati, Jorhat, North Lakhimpur, Silchar, Tezpur and Tinsukia. The Bajaj dealers also handle the KTM service centers and if not available at one location, they can guide you to an exact place for authorized service center. You can have their contact details from the following link by entering the state and city name.

http://www.bajajauto.com/bajaj_dealer_locator.asp