Kathmandu. An Indian national arrested with 5.5 kg of white heroin from Tribhuvan International Airport has been found to be a mechanical engineer.Police have recovered a mechanical engineer's certificate from his possession. Revraj Tighare, 52, from Maharashtra, has previously smuggled white heroin twice using Kathmandu as a transit point, according to police investigation.Tighare was found to have smuggled white heroin twice to India in 2025 and 2026 from Laos, said SSP Subash Bohora of the Narcotics Control Bureau. Tighare has confessed to the police that he first took white heroin to India by air and the second time by land.The...