P Jayapal (32) stole the jewellery casket and Rs 2,500 cash from her baggage on June 8 while she and her husband boarded the vehicle hours after they tied the nuptial knot in a marriage hall at T Nagar area here.
The valuables were stolen during its transfer to the taxi from the hall premises, police said.
After reaching their destination in suburban Madipakkam the couple found the jewellery and cash missing and lodged a complaint with police.
On being questioned, he confessed to his crime and the jewellery and cash were recovered from his house, police said.