In Jharkhand, Gomia witnessed a turnout of 51 percent till 1 pm.
Patel also sought to know why EVMs from Surat in Gujarat were used in the bypoll when similar machines were available in Maharashtra.
Till 1 pm, the Election Commission registered 63.35 percent polling in Meghalaya's Ampati Assembly constituency and 44 percent in Shahkot constituency in Punjab.
The seats where Assembly bypolls will be held are Noorpur (Uttar Pradesh), Shahkot (Punjab), Jokihat (Bihar), Gomia and Silli (Jharkhand), Chengannur (Kerala), Palus Kadegaon (Maharashtra), Ampati (Meghalaya), Tharali (Uttarakhand) and Maheshtala (West Bengal). Kairana constituency in the politically crucial state of Uttar Pradesh has gained prominence in the run-up to the 2019 Lok Sabha elections.
The Kairana bypoll will also see a joint Opposition taking on the ruling BJP.
Voting at three polling stations in Uttar Pradesh's Kairana could not be started yet due to the unavailability of EVM machines.
Voters, in large numbers, have been waiting for it in the queue.
Located around 630 kilometres from capital city of Lucknow, the Lok Sabha constituency has five Assembly segments: Shamli, Thana Bhawan and Kairana in Shamli district, and Gangoh and Nakur in Saharanpur district.
There are nearly 17 lakh voters in the constituency with a significant number of Muslims, Jats and Dalit voters.
In Bhandara-Gondia, the BJP and the NCP have locked horns in the bypoll, being held after the resignation of BJP MP Nana Patole.