<span style="color: #222222;">Prime Minister Narendra Modi today urged people to take  'Main Bhi Chowkidar' pledge, saying he is not alone in the fight against graft and social evils. </span><br />'' <br />'' <span style="color: #222222;">In a tweet, Mr. Modi said, he is standing firm and serving the nation, and everyone who is fighting against corruption, dirt, social evils and working hard for the progress of India is a Chowkidar. </span><br />'' <br />'' <span style="color: #222222;">Mr. Modi's tweet was an apparent attack on Congress President Rahul Gandhi, who has been taking potshots at the Prime Minister for calling himself a chowkidar. </span><br />'' <br />'' <span style="color: #222222;">Mr. Modi also posted a short video on his Twitter account, asking people to join 'Main Bhi Chowkidar' campaign on the 31st of this month. </span><br />'' <br />'' <span style="color: #222222;">The Prime Minister has termed himself nation's chowkidar who never allows corruption. On the other hand, Rahul Gandhi kept taking digs at Mr Modi. </span><br />'' <br />'' <span style="color: #222222;"> Reacting to Mr. Modi's tweet, Mr. Gandhi termed it as a defensive one. </span><br />''