Conventional wisdom says that doing business in India is a difficult proposition, given its unstable politics and restrictive investment environment.

But foreign investors may find that the Indian subcontinent has become more fertile lately thanks to its many ongoing reforms, according to Zarir Cama, group general manager and CEO of Hong Kong and Shanghai Banking Corp. in India.

"In India, you might not make money tomorrow," said Cama, who oversees HSBC's operations there. But that doesn't mean people have to wait 10 years for their investment to turn a profit, he said during a recent speech at Keidanren Hall sponsored by the Keizai Koho Center in Tokyo.