Amritsar, Dec 15 (ANI): Custom authorities in Punjab have seized heroin weighing 20 kilograms and a pistol onboard a goods train coming from Pakistan at the Attari railway station. The heroin concealed in beneath a bogey was seized during the regular search process. The train was on its way back to Punjab after unloading goods in Pakistan. Police have also confiscated a phone SIM card from the site.