Higher exports from the world's second biggest sugar producer could cap gains in global prices, which have been buoyed by lower production in Thailand, the world's second biggest exporter.

The exports will help India reduce stockpiles and support local prices of the sweetener, crucial in ensuring millions of cane farmers get government-mandated prices.

"Around 4.3 million tonnes of export contracts have already been signed," the Indian Sugar Mills Association (ISMA) said in a statement.

"This is a great achievement especially because these contracts have been signed in just 2-1/2 months, since the date the export quotas were allocated by the government on 31st December, 2020," it said.

Out of the total contracts, nearly 2.2 million tonnes of sugar has already been shipped, the ISMA said.

The South Asian country has approved a subsidy of 5,833 rupees ($80.38) a tonne for exports of 6 million tonnes in the current year.

India has been selling sugar mainly to Indonesia, Dubai, Afghanistan, Sri Lanka and African countries, said a Mumbai-based dealer with a global trading firm.

"A container shortage and higher freight charges are limiting Indian exports," the dealer said.

Indian mills have produced 25.87 million tonnes of sugar in the current marketing year, nearly 20% more than a year ago as output jumped in Maharashtra and Karnataka, the ISMA said.

However, this year many mills are closing operations early due to limited supplies of sugar cane, the trade body said.

In the current marketing year, 502 sugar mills have started operations, but 171 mills stopped crushing by mid-March end, it said.

(Reporting by Rajendra Jadhav; Editing by Kim Coghill)

By Rajendra Jadhav