The BJP has made her a candidate for the district panchayat member from Ward No. 22 of Fatehpur Chaurasi, according to a list released by state party chief Swatantra Dev Singh.
Unnao Superintendent of Police (SP) Anand Kulkarni said the accused used Sulfosulfuron, which is an odourless herbicide, to poison the water.
Three minor girls -- aged 16, 15 and 14 -- were found in an unconscious state in an agriculture field in the Babuhara village under Asoha police station area by the locals on Wednesday night.
Earlier, on Saturday, former MP and Congress leader, Udit Raj, had been booked by Unnao police for allegedly spreading misinformation through his tweet.