India, July 7 -- The opposition National Democratic Alliance (NDA) on Monday asked Karnataka's chief electoral officer to investigate what it described as widespread violations of Election Commission procedures during the state's ongoing electoral roll revision, alleging that officials had abandoned mandatory house-to-house verification and instead were processing voter forms at centralised locations.

A delegation comprising Union minister and JD(S) leader HD Kumaraswamy, Union ministers Pralhad Joshi and Shobha Karandlaje, Karnataka Assembly Opposition leader R Ashoka, Legislative Council Opposition leader Chalavadi Narayanaswamy and senior BJP and JD(S) leaders submitted a formal complaint to chief electoral officer V Anbukumar.

They ...