During his tenure at the company, Oza played a key role in various deals, including Nomura's sale of ASK Group to Blackstone and the sale of diagnostics firm Thyrocare to healthcare firm PharmEasy.
On April 6, 2023, Moneycontrol had reported that Ashish Jhaveri, Head of M&A at Barclays Bank India was likely to join Jefferies as its new head of I-banking (India).