Spice Jet Airlines — hand baggage charges include laptop bag n food carried to be consumed during the layover

Was charged 400 rs per kg for excess hand baggage since hand baggage included laptop bag n food carried that was yo be consumed during the layover.
You can't carry sweets n other eatables because the aircraft cannot take that weight, but you can buy triple or even five times the weight of sweetmeats after check in from the airport stores. The aircraft can carry that extra luggage!!!
This was while flying from coimbatore to pune with a 2.5 hr layover in bangalore.