The economy now seems to have weathered the transitional challenges experienced earlier in the year and appears poised for a durable recovery going forward, he told reporters.
"This (growth) indicates that perhaps the impact of two very significant structural reforms, demonetisation and GST, is now behind us. And hopefully in the coming quarters we can look for upwards trajectory," he said while commenting on the data released by the Central Statistics Office (CSO).
The GDP growth in the second quarter of 2017-18 compares to 5.7 per cent in April-June, the lowest growth rate since the Narendra Modi government took office, and 7.5 per cent in the September quarter of the previous fiscal.
Jaitley further said since May 2014, out of the 13 quarters, the country has clocked upwards of 7 per cent growth eight times.
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"We have fallen below 6 per cent only once and that was the last quarter. Therefore, if you at all compare this to any previous figures immediately preceding that, this looks entirely different.
Jaitley also said the rate of growth of gross fixed capital formation in July-September at 4.7 per cent is encouraging, adding that "investment is moving up".
To a query on dip in revenue collection under GST, he said it is "still early days" because transitional credits are being claimed and "therefore the pattern how it will work out has still not fully established".
He, however, hoped the collection in the medium and long term will pick up.
"So there is an underestimation. That is what he (Anant) is saying. To that extent GDP number may go up when it is finally revised," Finance Secretary Hasmukh Adhia said.
Chief Economic Advisor Arvind Subramanian, who was also present at the press briefing, said growth would be "pretty much" in line with the projections made in the Economic Survey tabled in Parliament in January this year.
The Survey had projected India's GDP growth in the current fiscal to be in the range of 6.7-7.5 per cent.
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