The complainant, a resident of Ahmedabad, was travelling to Delhi with her father in a private airline.
"During the journey, her father noticed a man secretly taking objectionable photos of his daughter and raised an alarm," a senior official said.
The accused, Gaurav Sharma, a native of Sambhal in Uttar Pradesh who is employed at a steel company in Ahmedabad, was arrested after the flight landed in Indira Gandhi International Airport here, he said.