The calculated distance (air line) between Trashi Yangtse and Bongaigaon is approximately 97 miles respectively 157 kilometers.
By car or train, the actual journey to Bongaigaon is certainly longer, as only the direct route (as the crow flies) between Trashi Yangtse and Bongaigaon has been calculated here.
Air line (approximately)
157 kilometers
85 nautical miles