An industrialist, Moinuddin Koya, was arrested in Chennai on Monday for his alleged links with the Al-Badr terror group, police said.
Koya is believed to be a sleeper agent.
With this, the number of people arrested in connection with the alleged Pakistani terrorists' ring has gone up to four. They include two Pakistanis—Mohammad Fayed and Mohammed Ali Hussain—and one Satish Kumar who owned a driving school in the northern suburbs in Chennai.
The Pakistani duo was arrested in Mysore on Oct 27 following which police unearthed an alleged plot by Al-Badr to attack important buildings in Bangalore and its outskirts.
Fayed and Hussain had allegedly obtained several mobile phones, two satellite phones, forged driving licences, false passports, and ration cards with the help of Koya.
Police also said Koya was a relative of Fayed.