India's UDAN scheme has served 1.72 crore passengers across 687 routes and operated 3.68 lakh flights since its October 2016 launch, the government said ahead of its 10th anniversary. A total of 95 aerodromes are operational. The Modified UDAN scheme, launched July 4, allocates ₹28,840 crore over 10 years to sustain regional aviation growth.