Two persons were arrested with 600 pentazocine (a painkiller) injections and 25 grams of methamphetamine (a stimulant) which they were trying to sell to addicts in Vadodara, police said on Sunday. The two, identified as Mayur Gaekwad and Sachin Parmar, were nabbed by a team of the police's Special Operations Group (SOG) after it received a tip-off that they would be coming to a local ground to carry out a transaction, officials said.