New Delhi, May 15 (PTI) Investors must pay taxes on money they earn in India and a "tax-incentivised route" is no longer needed to attract foreign investments to a "strong enough" Indian economy, Finance Minister Arun Jaitley said today.

He said there was no "serious apprehension" of investors shifting base to other tax havens and he sees no depletion in FDI flows due to re-drawing of decades-old tax treaty with Mauritius -- the biggest source of foreign investments into India.

The amendment would also help check round-tripping of funds and boost the domestic consumption, Jaitley added.

After toiling for almost a decade to redraw the tax treaty with Mauritius, India will begin imposing capital gains tax on investments in shares through Mauritius April next onwards. This has been made possible with amendment to the 34-year old tax treaty between the two countries.

As markets reacted cautiously to India expanding its crackdown on tax treaties to make it harder for investors to use tax havens as a shelter to avoid levies, Jaitley told PTI, "Eventually, markets have to operate on inherent strength of (Indian) economy."

Stating that the original Mauritius treaty created "a tax-incentivised route" at a time when India was looking at foreign investments to boost economy, he said the economy has become strong enough and "now those who earn must pay taxes."

The original treaty, signed almost a decade before India opened up its economy in 1991, has helped channellise more than a third of the USD 278 billion (nearly Rs 19 lakh crore) foreign direct investment India received in the past 15 years.

The imposition of taxes has been "done in a phased manner to avoid shock and I don't expect any depletion to FDI because of this. Also eventually, markets have to operate on inherent strength of economy," he said.

Minister of State for Finance Jayant Sinha said the treaty revision will bring in lot of transparency about Mauritius-based entities investing in India.

"It will help us dramatically in curbing round-tripping because there are two very important aspects to it. One is the capital gains regime... that will be applicable at the same rate as you would get if you were a domestic resident tax payer in India. So there would be no advantage for anybody coming in through the Mauritius route after 2019.

"Number two, they will also be able to get a lot more transparency on Mauritius companies that will be investing in India through the Information Exchange Protocol that we have also signed," he said. .