"If the West is not bouncing back to its former strength any time soon, where will growth come from? India is the obvious candidate," HSBC economists said in a note.
China as the economic engine has "begun to sputter" and India is the only other country with over a billion plus people and also grew "a tad faster" than its northern neighbour in the last year.
"India may struggle to attain, for now, the growth rates China achieved at the height of its boom. Still, don't count the country out just yet: assuming things keep ticking as long as they have, by the middle of the next decade India's economy will account for the same world share as China did in 2005, the year when the mainland really started to make itself felt globally," it said.
It termed this as a "momentous shift" which will be taking place, and added that this is going by the share of world GDP in dollar terms.
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The presence of a pro-growth, reform oriented regime at
the Centre, along with fundamental factors like favourable demographics which make it among the youngest nation in the world, and large consumer base, is making analysts more confident about the India story, HSBC said.
China, which embarked on its reforms from the early 1980s, grew at double digits to lead the global growth on its shoulders after the post-Lehman crisis.
"China's investment rate has always been higher than India's (although by a relatively narrow margin in the late 2000s). To achieve China's growth rate of the last decade, India would have to boost its investment rate by 10 percentage points or so of GDP," it said, adding that this is not impossible.