After being at loggerheads for 8 years, Ambani brothers have sealed a Rs 1,200-crore (Rs 12-billion) deal wherein Mukesh will use his younger sibling's optic fibre network for launch of his telecom venture.

Under the pact, Mukesh Ambani-led Reliance Industries' telecom arm will hire nationwide optical fibre network of Reliance Communications for the roll-out of 4G services.

After Dhirubhai Ambani's death in 2002, Mukesh and Anil had a bitter battle over the Reliance empire. After a nasty seven-month-long ownership battle, on June 18, 2005, they split the Reliance empire to steer ahead their own interests.

Take a look at the Ambani brothers over the years...

Mukesh Ambani (R), chairman of Reliance Industries, and his brother Anil Ambani, chairman of Reliance Group, attend the inauguration ceremony of the Vibrant Gujarat global investor summit at Gandhinagar in Gujarat January 11, 2013.

Click NEXT to read more...

Mukesh Ambani, chairman of Indian energy major Reliance Industries, arrives with his wife Nita Ambani (R) and mother Kokilaben Ambani (L) to address the annual shareholders meeting in Mumbai.

Click NEXT to read more...

Shareholders watch Mukesh Ambani, Chairman of Indian energy major Reliance Industries, on a screen as he addresses the annual shareholders meeting in Mumbai June 18, 2010.

Click NEXT to read more...

Mukesh Ambani (L), chief of Reliance Industries, and Anil Ambani, chairman of Reliance Communications, are pictured in this combination image of file photos.

Click NEXT to read more...

Anil Ambani, Chairman of Reliance Communications, leaves the Supreme Court in New Delhi May 7, 2010.

Click NEXT to read more...

Mukesh Ambani and Anil Ambani are seen in Mumbai on June 24, 2004

Click NEXT to read more...

Mukesh Ambani, Anil Ambani pose with their father Dhirubhai Ambani in Mumbai in this November 2000 file photo.

Click NEXT to read more...

Mukesh Ambani and Anil Ambani are seen in Mumbai June 16, 2003.

Click NEXT to read more...

Anil Ambani, Chairman of Reliance Communications, comes out of the Supreme Court in New Delhi May 7, 2010.

Click NEXT to read more...

Reliance Industries Ltd Chairman Mukesh Ambani addresses shareholders during an annual general meeting in Mumbai August 3, 2005.

Click NEXT to read more...

Reliance Industries Chairman and Managing Director Mukesh Ambani gestures during an interview with Reuters at his office on the outskirts of Mumbai July 8, 2003.

Click NEXT to read more...

Mukesh Ambani and Anil Ambani are seen in Mumbai June 24, 2004.

Click NEXT to read more...

Anil Ambani, chairman of the Anil Dhirubhai Ambani group, speaks during a news conference in Mumbai February 24, 2008.