The calculated distance (air line) between Mayāng Imphāl and Serchhīp is approximately 112 miles respectively 181 kilometers.
By car or train, the actual journey to Serchhīp is certainly longer, as only the direct route (as the crow flies) between Mayāng Imphāl and Serchhīp has been calculated here.
Air line (approximately)
181 kilometers
98 nautical miles