"We have requested immigration department to detain them at airports and inform us if they are spotted. We understand some have already left India and some are trying to flee the country," a top police official, who did not wish to be named said.
He said police have no authority to issue a lookout notice and can only make a request to immigration authorities.
Besides Dayanidhi, others named include Maharajan and Nagarajan, P Sureshkumar, P Senthilkumar, P K Selvaraj, Veeramani, Periyasamy and four others of different granite companies.
Police said a special team is searching for them and had already frozen the companies' accounts.
They said a team of auditors was collecting the banking transactions of these companies. Auditors of the companies and some officials of Tamil Nadu Minerals are also being questioned, they said.
On August 7, cases were registered against 10 persons, including Durai Dayanidhi, charging companies owned by them with mining sand and granite without permission.
The action came close on the heels of a detailed survey of 175 granite quarrying sites by the district administration on a report by former District Collector U Sagayam, estimating loss to the state exchequer by illegal quarrying at Rs 16,338 crore.
