New Delhi, Jan 5 (PTI): The economic growth is expected to slow to a four-year low of 6.5 per cent in 2017-18, the lowest under the Modi-led government, mainly due to the poor performance of agriculture and manufacturing sectors.

The Gross Domestic Product (GDP) was 7.1 per cent in 2016-17 and 8 per cent in the preceding year. It was 7.5 per cent in 2014-15.

The Narendra Modi-led NDA government had assumed office in May 2014.

"The growth in GDP during 2017-18 is estimated at 6.5 per cent as compared to the growth rate of 7.1 per cent in 2016- 17," said the Central Statistics Office (CSO) while announcing the first advance estimates of National Income 2017-18.

The growth of real Gross Value Added (GVA) in 2017-18 is anticipated at 6.1 per cent as against 6.6 per cent in the previous year.

Economic activities were affected by demonetisation announced on November 8, 2016 and subsequent implementation of a new indirect tax regime (GST) from July 1 in the current financial year.

As per the CSO data, the expansion in activities in 'agriculture, forestry and fishing' is likely to slow to 2.1 per cent in the current fiscal from 4.9 per cent in the preceding year.

The growth in manufacturing sector too is expected to decelerate to 4.6 per cent this fiscal, down from 7.9 per cent in 2016-17.