Rekha Jhunjhunwala, late Rakesh Jhunjhunwala's wife, increased her stake in Federal Bank in the December quarter, according to the latest shareholding pattern. Jhunjhunwala now owns a 1.17% stake in the Kerala-based private lender. In the June quarter, Rakesh and Rekha Jhunjhunwala together held around 1%, while Rakesh Jhunjhunwala held a 2.63% stake in the bank in his individual capacity.