However, he maintained that the problems were being addressed and that fiscal deficit will reach the target of 3 per cent in 2016-17.
Here on a three-day visit to woo investors, Chidambaram told a press conference that foreign investors continue to place confidence in India.
"We have to sort out many internal issues. We have to contain fiscal deficit. We have to tame inflation. We have to find ways in which projects are executed on time and efficiently. We are addressing these problems. These in my views are biggest challenges facing India today", he said.
"I am not happy. We are growing at only 5 to 5.5 per cent... Because our people require at least an 8 per cent growth," he said, adding India's potential growth is 7 per cent a year.
The economic growth in the current financial year has been estimated at around 6.1-6.7 per cent.
On fiscal deficit, he said, it was brought down to 5.2 per cent in 2012-13. Every year it has been reduced by 0.6 per cent and the country will achieve fiscal deficit target of 3 per cent by 2016-17.