The Delhi Police on Sunday said activists of banned Sikhs For Justice (SFJ) defaced more than five Metro stations with pro-Khalistan graffiti ahead of the G20 Summit scheduled in the national capital next month. The police said the SFI released raw footage of Delhi Metro stations where Khalistan pro-slogans are written. SFJ activists were present in multiple metro stations in Delhi from Shivaji Park to Punjabi Bagh with pro-Khalistan slogans, the Delhi Police.