 Per persecution case, Gurcharanjit Singh, Doulat Singh, Gurvinder Singh along with Satwinder Singh and Balwant Singh of the Chandigarh Police executed this action.As per Police, Khalistan Liberation force militants killed a minister in Punjab Government Mr. Balwant Singh in Chandigarh in the year of 1990.Khalistan Liberation Force attacked and killed 8 RPF (Railway Protection Force) men at Butari railway station in India.