was he involved in any riots?
Modi's personal involvement in the 2002 events has continued to be debated. During the riots, Modi said that "What is happening is a chain of action and reaction."
Narendra Modi
Modi's personal involvement in the 2002 events has continued to be debated. During the riots, Modi said that "What is happening is a chain of action and reaction." 
where was indian flag hoisted on 15 august 1947 At the Lahori Gate of the Red Fort in Delhi how is this day celebrated? On the eve of Independence Day, the President of India delivers the "Address to the Nation",  the Prime Minister hoists the Indian flag on the ramparts of the historical site of Red Fort in Delhi, twenty-one gun shots are fired in honour of the solemn occasion how did the above mentioned fort get its name? Its English name "red fort" is a translation of the Hindustani लाल क़िला, deriving from its red-sandstone walls who built it? Architect Ustad Ahmad Lahori, under  Emperor Shah Jahan who is the current pm of india? Narendra Modi where did he complete his schooling? He  completed his higher secondary education in Vadnagar
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Narendra Modi [SEP] 2002 Gujarat riots
Modi's personal involvement in the 2002 events has continued to be debated. During the riots, Modi said that "What is happening is a chain of action and reaction." Later in 2002, Modi said the way in which he had handled the media was his only regret regarding the episode. In March 2008, the Supreme Court reopened several cases related to the 2002 riots, including that of the Gulbarg Society massacre, and established a Special Investigation Team (SIT) to look into the issue. In response to a petition from Zakia Jafri (widow of Ehsan Jafri, who was killed in the Gulbarg Society massacre), in April 2009 the court also asked the SIT to investigate the issue of Modi's complicity in the killings.