The government needs to take quick measures to push the growth, he said.
"In some ways, one can say the economy has bottomed out. Because, for two quarters it has remained at 5.7 per cent.
"Therefore, the glitches of GST may be over. Some of the effects of demonetisation would also be neutralised with the new currency coming in. Therefore, it could pick up. But, it needs to pick up very fast," Rangarajan told PTI here on the sidelines of an event.
"Because, the rate of growth of 5.6 per cent in the first quarter, even to get 6.5 per cent for the year as a whole, the economy needs to grow at seven per cent in the three quarters. Therefore, the growth rate has to pick up much faster," he said.
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The government needs to take quick action for the economy to pick up "really fast", Rangarajan said.
He suggested revival of "all viable stalled projects", recapitalisation of banks and removal of impediments in the way of higher corporate investment to give a push to the economy.
The government should meet industry bodies in small groups to find out the impediments that have come in the way of higher level of investment and try to remove them, he said.