Union Home Minister Amit Shah on Saturday said the Centre’s zero-tolerance policy towards narcotics is showing results and emphasised that states work in tandem with the Centre in the fight against the menace of drugs.

Shah, who was on a day-long visit to Chandigarh, also spoke about steps being taken by the Centre to weed out the problem of drugs while asserting that the zero-tolerance policy towards drugs was necessary to achieve the objective of a healthy society and prosperous nation.