Priyanka Gandhi Vadra, on the first day of a boat-ride on the river Ganga that will take her to Prime Minister Narendra Modi's Varanasi, had a sharp comeback for his "Main Bhi Chowkidar" campaign. "Chowkidars are for the rich, not farmers," said she said, taking a dig at the campaign that had most BJP leaders adopting the prefix "Chowkidar" or watchman on Twitter.