Madhya Pradesh Home Minister Narottam Mishra said the lockdown in Bhopal will begin from 8 pm on Friday.
A probe has been ordered into the accident, Madhya Pradesh minister PC Sharma said.
Pragya Thakur creates row with her name while taking oath at 17th Lok Sabha session
The terror-accused, BJP's Bhopal candidate, said she was observing "silence" for 63 hours as a mark of penance.
If Thakur wins from Bhopal, the BJP can claim the dubious honour of having been the first party to send a terror-accused to Parliament.
Hundreds of sadhus trooped to the Madhya Pradesh capital to seek votes for Digvijaya Singh and campaign against Pragya Thakur.
The terror-accused BJP candidate has been making a series of communal, unscientific and bizarre remarks since her candidacy was announced.
The BJP's terror-accused Bhopal candidate, currently out on bail, has claimed her curse killed Karkare, who died in the 26/11 attacks. The vitriol isn't unexpected.
Malegaon blast-accused Thakur has joined the BJP and will contest Lok Sabha elections from Bhopal.
While the police is waiting for autopsy reports to find out the identity of the corpse, they suspect that the body was in the flat for around six months.