Chandigarh: An Army jawan posted in Jammu and Kashmir has been arrested for allegedly imparting online training to the man who hurled a grenade at the residence of a Jalandhar-based YouTuber last month, Punjab Police said on Thursday. A court in Jalandhar sent the jawan, Sukhcharan Singh, to five-day police remand, police officials said. The main accused, Hardik Kamboj, hurled the hand grenade at the house of YouTuber Rozer Sandhu on the intervening night of March 15 and 16. However, the grenade did not explode. During the course of investigation, it came to light that Singh provided online training to Kamboj on throwing the grenade at the residence of the YouTuber, said Senior Superintendent of Police (Jalandhar Rural) Harvinder Singh Virk. Singh came in contact with Kamboj through social media platform Instagram, police said. Singh, who hails from Muktsar district, was named in the FIR and an arrest warrant was secured from a court, the SSP said. Police said they apprised the Army authorities about Singh’s role in the matter. A court in Jalandhar sent …