By plane
Air travel from Guwahati to Upper Assam or Southern Assam districts can be quicker and easier. Guwahati is linked with Dibrugarh, Tezpur and Silchar with several flights. However, it is important to book a ticket earlier. A flight between Guwahati and Dibrugarh takes roughly 45 minutes.
By train
Although having a fairly extensive railway network, trains are less convenient than buses or taxis for travelling short distances within Assam - inter-city or inter-regional trains are not very frequent within Assam. Moreover, the Assam's rail network is fragmented due to different gauge size. The services on narrow gauge and meter gauge lines are irregular and uncomfortable. Broad gauge service links Guwahati with major cities in upper Assam Dibrugarh, Jorhat and Tinsukia, which is comfortable but little more time consuming than the buses; However, from Guwahati, one may try using the Rajdhani Express fully Airconditioned for an over-night journey to reach Dibrugarh or Tinsukia. The railway tickets are bookable online or available at the electronic ticketing counters in the stations. It is important to have a reservation for an overnight train journey, to obtain a berth in a comfortable A/C or non A/C sleeper coach. For reservation, booking should be made 2 months before the journey; however, in majority trains 'Tatkal' sevice is available.
For MYANMAR CITIZENs the nearest railhead is LEDO 60 Kms from PANGSU PASS . From here they can take a train directly to GUWAHATI or can take a FLIGHT from DIBRUGARH , 160 KMs from PANGSU PASS. In fact there is a INTERCITY express between GUWAHATI and LEDO.