 Complete the following phrase:  He was introduced to graffiti in 2006 through a website called Streetfiles. His initial collaboration was with France-based artist JonOne, one of the founder-members of Crew 156  the group of popular New York City Subway artists from the 1980s, in Mumbai in 2008 for a year. He also collaborated with two other graffiti artist, Bond and Zine in Delhi in 2008. He started tagging his own name in Devnagari script on walls in Mumbai and South Delhi in 2008 and told that he did it to reach large Indian population who understand only local languages. He stenciled fuck in Hindi across nine places in Mumbai overnight in 2011 to protest against Vasant Dhoble, assistant commissioner of police who was accused of moral policing. He regularly commented on social issues by his works like stenciled LPG cylinder rocket to highlight price rise, blindfolded protester during 