THIRUVANANTHAPURAM, April 26 -- A handful of candidates across party lines have pledged to recycle existing poll material, and clean up walls where political pamphlets and posters were plastered, after polling for all the 20 Lok Sabha constituencies in Kerala ended on April 23.

In Ernakulam, Left Democratic Front candidate P Rajeev started a campaign in the party supporters' WhatsApp groups, called Let Us Clean Ernakulam.

He asked supporters to clear up the posters and wall paintings within two days. The response was immediate, said Rajeev, with people posting photos of cleared walls.

"It is our responsibility to clean up," he said.

Meanwhile, Bharatiya Janata Party candidate from Thiruvananthapuram, Kummanam Rajasekharan, former Govern...