Chandigarh, Feb. 19 -- Punjab Director General of Police (DGP) Gaurav Yadav has informed that the perpetrators behind the recent cases of alleged blasts in the border state have been arrested.

On the recent cases of alleged blasts in Punjab, DGP Gaurav Yadav said, " All the so-called grenade blasts, there have been 12 such cases, and all of them have been traced. In all the cases, we have caught the perpetrators."

He was speaking to reporters at a press conference on Wednesday. DGP Gaurav Yadav warned that "black sheep" in the police force are not going to be tolerated.

DGP Yadav said, "The police authorities in Punjab are undertaking an exercise to identify instances where police officers have been booked into FIRs, or there are alleg...