The correct answer is (b).
The first of three Phalcon AWACS aircraft supplied by Israel was received by India in April 2009. The aircraft were manufactured by Israel Aerospace Industries (IAI) and are based on the Boeing 737-700 airframe. They are equipped with the EL/W-2090 radar, which has a range of over 300 nautical miles and can track up to 200 targets simultaneously. The Phalcon AWACS are used by the Indian Air Force for air surveillance and control, and have been deployed in a number of operations, including the Kargil War and the Indo-Pakistani standoff of 2019.
The other options are incorrect. Option (a) is incorrect because the first Phalcon AWACS was received in April 2009, not March 2009. Option (c) is incorrect because the first Phalcon AWACS was received in April 2009, not May 2009. Option (d) is incorrect because the first Phalcon AWACS was received in April 2009, not February 2009.