Prime Minister Narendra Modi today hailed Mumbai's famous dabbawalas for joining the Swachh Bharat campaign, saying their effort is exemplary.

"I congratulate the dabbawalas of Mumbai for joining Swachh Bharat Mission & extending their continued support to it," Modi tweeted.

"The efforts of the dabbawallas of Mumbai is exemplary. Despite their hectic schedules, they devoted themselves towards a Clean India," he said in another tweet.