After his brother was murdered in anti-Muslim riots, Pervez Qureshi watched the videos he believes incited the killers, part of a wave of hatred being fomented on social media ahead of India’s elections. India has a long and grim history of sectarian clashes between the Hindu majority and its biggest minority faith, but analysts warn increasingly available modern technology is being used to deliberately exploit divisions. “Videos and messages were shared on Facebook and WhatsApp which contained inflammatory language and incitement to violence,” Qureshi told AFP, recalling the attack on his bro…