France's President Emmanuel Macron (C) sits in a Dassault Aviation Rafale fighter jet as Dassault Aviation's CEO Eric Trappier (R) looks on during the International Paris Air Show in Le Bourget, outside Paris, on June 19, 2017.Photo: Christophe Archambault/CFP

The first five of a batch of French Rafale fighter jets purchased by New Delhi in a controversial multibillion-dollar deal headed to India on Monday for rapid deployment amid rising tensions with China.

The deal, estimated to be worth $9.4 billion, has been overshadowed by corruption allegations leveled by the opposition Congress party although Indian Prime Minister Narendra Modi has rejected the claims.

The jets built by Dassault Aviation - and piloted by officers from the Indian Air Force (IAF) - took off from Merignac in southwest France, the company said in a statement.

By Wednesday, they should be at Ambala air base in northern India, some 200 kilometers from the Pakistani and Chinese borders.

They will refuel midair several times on the way and also make a stopover in Al Dhafra in the United Arab Emirates, where France has an air base.

They are accompanied by two A330 Phenix MRTT refueling planes from the French Air Force, one of which is carrying 70 ventilators, 100,000 test kits and a team of 10 health experts to support India in its fight against COVID-19, according to the French defense ministry.

Delivery of the Rafale jets - 36 of which were ordered by India in September 2016 - officially began in October but the planes stayed in France for training of the pilots and mechanics.

Delivery should be complete by 2022.

"I am strongly impressed by the amazing efficiency and determination of the Indian Air Force and Indian Ministry of Defence," the Chief Executive Officer of Dassault Aviation, Eric Trappier, said in a statement.

He said that despite the COVID-19 pandemic, they had managed to "master rapidly all aspects of the Rafale for comforting Indian sovereignty and contributing to the protection and security of Indian people."

AFP