PATNA, March 25 -- In a major breakthrough against drug trafficking, Darbhanga police launched an operation following tip off from STF (Anti Narcotics Cell) and Prohibition and Narcotic Control Bureau on Monday night and arrested three alleged drug traffickers from Darbhanga and subsequently two arrests were also made in Patna, police said on Tuesday. According to police the seizure of a significant quantity of heroin is valued at Rs.60-80 lakh in the international market. The arrested individuals have been identified as Dipu Kumar, Ratnesh Kumar and Kundan Kumar, all from E Champaran. HTC...