Wanted underworld gangster Dawood Ibrahim's brother Iqbal Kaskar was relaxing at his sister Haseena Parker's house when he was picked by Thane cops late on Monday.

Kaskar was watching popular TV gameshow - Kaun Banega Crorepati (KBC) and having some delicious biryani when the cops knocked at the door.

"He was busy watching Kaun Banega Crorepati and eating biryani," Thane Police Commissioner Parambir Singh told reporters.

The Thane Police is probing the role of a few leaders and corporators in the extortion racket being run by most wanted underworld gangster Dawood Ibrahim's brother Iqbal Kaskar, who was arrested on Monday night.

Iqbal was taken into custody by a team led by encounter specialist and the anti-extortion cell's senior police inspector Pradeep Sharma.

Kaskar was arrested after some extortion calls were made in Dawood's name to a Thane-based businessman.

Besides Kaskar, two others have been arrested, and five people detained.

Iqbal Kaskar and two others were given an 8-day police remand.

LINKS WITH POLITICIANS?

Thane Commissioner of Police Parambir Singh told reporters that they are investing Kaskar's links with some politicians and corporators.

"Threats were given in name of Dawood. Shooters were hired from Bihar to threaten people. Some politicians, corporators could be involved in the extortion racket. We are investigating the matter," Parambir Singh said,

"We are also probing whether Dawood Ibrahim had any direct or indirect involvement in this extortion racket run by Iqbal Kaskar," the top cop added.

Iqbal, who was deported from the United Arab Emirates in 2003 , is said to be operating his brother's real estate business in the city.

He was wanted in a murder case and the Sara Sahara illegal construction case. However, he was acquitted in both the cases in 2007.

WATCH: Dawood Ibrahim's brother Iqbal Kaskar grilled by Thane police in extortion case