Leading airport operator GMR said it had an investment pipeline of $7-8 billion for the next three years, including $500 million for airport projects in the overseas markets.

"We have close to $7-8 billion projects that we have on our plate over the next three years. So next 3-4 years we are full on our plate," said Subbarao Amrthaluru, CFO, GMR Group.

"In the airport sector we will continue to look at projects outside the country if they are profitable. But in other sectors, we are not looking at overseas projects," he added.

Amrthaluru said the group would invest $5 billion in the power sector, $2 billion in the roads projects and $500 million in airports.

GMR, which runs four airports in Delhi, Hyderabad, Istanbul in Turkey and one in the Maldivian capital, will not be looking at any new projects in the country. The focus will be on overseas projects, but only profitable ones, he said.

The group has already bid for an airport project in Spain, but Amrthaluru declined to share details.

On his operational four projects, he said all of them are growing tremendously at about 15 to 20 per cent annually.