Naidu asked Labour Commissioner Ramanjaneyulu to rush to Tiruvallur to supervise the rescue and relief operations, an official release said here.
At least 11 construction workers were today killed after a newly built compound wall adjacent to their huts collapsed near Uttarapalayam in Tiruvallur district.
The labourers, many of them said to be from Andhra Pradesh, were working in a private godown.
The mishap occurred after heavy rains lashed the area last night, police said.