A short circuit triggered the fire on the 19th floor of Jolly Maker building at GD Somani Marg at around 3.30 am.
Iran has offered to provide Pakistan USD 500 million to build its section of a bilateral gas pipeline project on the condition that Islamabad will not turn its back on the venture.
Attack on Israeli diplomat in February, export of wheat to Tehran, Iranian dialogue with P5+1 on its contentious nuclear programme were among the key issues discussed between India and Iran.
The pipeline has come under attack at least 12 times since Egyptian president Hosni Mubarak was toppled in 2011.
Day in Pics: 31st January
Showbiz World - January 31, 2015
Playboy Super Bowl XLIX Party