New Delhi, May 13 -- Bollywood singer Monali Thakur was shocked to witness the difference in the total flight fare before and after the "discount" IndiGo Airlines was offering.

In a now-viral Instagram video, the 'Moh Moh Ke Dhaage' fame singer shared that she was trying to book a flight with IndiGo via its official website when she noticed its strange discount pricing.

Monali, who was giggling in the video, showed that upon applying a 15% discount with up to Rs.2,000 off on transactions above Rs.5,000, the total fare of her flight booking went up from an initial booking amount of Rs.7,272 to Rs.7,371.

The singer found the addition of Rs.99 to her fare after a 15% discount "very interesting and questionable."

She then questioned the a...