Jamshedpur, Jan. 16 -- Special training and mapping camps will be held at booths on three days in the East Singhbhum district for the Special Intensive Revision (SIR) of the voters' roll, with two of its constituencies emerging as the slowest in pre-SIR mapping in Jharkhand, officials said on Friday.

The decision was taken during a one-day training session held at the district collectorate in Jamshedpur on Friday, which was attended by all additional assistant electoral registration officers (AEROs), department officers and staff, and representatives of residential welfare associations.

"Special camps will be held at all booths in the district on January 17, 18, and 24 for intensive pre-SIR mapping. Voters whose mapping has still not be...