An election control room was set up in Kadapa Collectorate to receive complaints pertaining to the by-elections with toll-free No. 1077, District Election Officer and Collector Shashi Bhushan Kumar said on Tuesday.

Complaints can also be made on landline phones 08562-244676 and 221024 or mobile phone 9701789704. Written complaints can be faxed on numbers 08562-221711, 221712, 221713, 221714 and 221715, he said.