In many places electronic voting machines (EVMs) had glitches resulting in some delay in polling, an official said.
Chief Minister N Chandrababu Naidu and his family members exercised their franchise at a polling station in Undavalli village in the state capital region Amaravati.
Technical teams were on the job to rectify the defects and enable polling, he said.
There are a total of 3,93,45,717 registered voters in the state, including 1,94,62,339 male, 1,98,79,421 female and 3,957 transgenders.
Of the total, 10.15 lakh are first-time voters in the age group 18-19.
As many as 2,118 and 319 candidates are in the fray for 175 Assembly and 25 Lok Sabha seats respectively.
Polling would end at 5 pm in the Left-wing extremism-affected areas, mostly those bordering Odisha and Chhattisgarh.
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