Joymala BagchiNew Delhi, Jan. 1 -- Twenty-four percent of voter mapping has been done in the national capital as part of the Election Commission's special intensive revision (SIR) exercise, official sources said on Thursday.

"The mapping process is currently underway. They have been asked to use the 2002 data for Delhi. So far, around 24 per cent mapping has been done in Delhi," an official of the Chief Electoral Office (CEO) Delhi said.

Delhi's biggest challenge today is migration. While long-time residents often own homes, many live in rented accommodations, even as a large influx of people from outside the city has settled here. This sustained migration has put pressure on housing, infrastructure, and public services, emerging as a maj...