In Delhi, a scheme to involve school eco clubs in the DDA's plantation drive was launched at a green belt in Rohini's sector 37 on Friday by Union Minister for Housing and Urban Affairs Hardeep Singh Puri.<br />'' <br />'' Officials said as part of an afforestation drive of the Delhi Development Authority (DDA), four lakh indigenous trees will be planted this year across various biodiversity parks and other green belts in the national capital.<br />'' <br />'' Delhi Lieutenant Governor (LG) and DDA Chairman Anil Baijal expressed happiness at the response of the schools and said there was a need to incentivise the performers of the scheme. <br />''  <br />