India, March 3 -- The size of India's wheat crop, the main winter staple, has expanded to 328 million hectares, a three-year high, according to the season's final estimates by the Roller Flour Millers' Federation of India, the apex industry body.

The government too is expected to put out its updated estimates soon, as the grain, key to the country's food security, enters its maturing stage.

A senior official of the federation said geotagged surveys showed a robust jump in acreage, which will likely keep prices stable.

"The crop is in robust condition and ongoing rainfall due to the (western) disturbance has been greatly beneficial, although there prevails a bit of climate uncertainty, causing speculative activity," said Navneet Chitlan...