SRINAGAR, India—The New York-based Committee to Protect Journalists asked Indian authorities to immediately release a journalist in disputed Kashmir, days after police arrested him for uploading a video clip of a protest against Indian rule. The media watchdog on Saturday said it was “deeply disturbed” by the arrest of Sajad Gul, an independent journalist and media student. It wrote on Twitter it was asking Indian authorities to “drop their investigation related to his journalistic work.” Indian soldiers picked up Gul from his home in northeastern Shahgund village on Wednesday night and later handed him over to the police, his family said. He had posted a video of family members and relatives protesting the killing of a rebel commander on Monday. Initially, police said he would be released but on Friday, his family was told that a formal case was opened against Gul on charges of criminal conspiracy and working against …