India, April 29 -- Spain's economic growth slowed marginally in the first quarter and inflation weakened in April on lower gas and electricity prices, official data showed on Tuesday. Gross domestic product expanded 0.6 percent in the first quarter, which was slightly slower than the revised 0.7 percent growth posted a quarter ago, the preliminary data from the statistical office INE showed.

The economy was expected to grow 0.7 percent after fourth quarter's initially estimated expansion of 0.8 percent.

On a yearly basis, economic growth softened to 2.8 percent from 3.3 percent a quarter ago.

Domestic demand contributed 0.4 points to quarterly growth and external demand contributed 0.2 points.

On the expenditure-side, household spending...