BharatPe co-founder Ashneer Grover and his wife Madhuri Jain were stopped at Indira Gandhi International Airport due to an Economic Offence Wing (EOW) lookout circular.
The couple was sent back and scheduled to join EOW for investigation next week.
It was found that the Grover family generated backdated invoices for extracting money from BharatPe.
Madhuri Jain allegedly approved payments of Rs 7.6 crore for unproductive HR firms with connections to the family.
BharatPe sought over Rs 88 crore in damages for fund misappropriation and also alleged Grover's insignificant contribution to the company.