Validating claims of the opposition parties and activists that a large number of names were deleted from the electoral rolls in Telangana without due diligence in the Greater Hyderabad area in 2015, a Right to Information (RTI) response from the chief electoral office (CEO) said that the then chief had admitted before the Election Commission of India (ECI) that door-to-door verification had not been conducted properly.
According to data from the CEO’s office, there were 28.1 million voters during the 2014 general (and state) elections in Telangana. The number dropped by 2 million (while more than 3 million names were deleted in 2015, more names were added back during subsequent revision of rolls) till 10 September 2018, to 26.1 million.
— source livemint.com | 25 Feb 2019