NEW DELHI. Govt extends tenure of 8 EDs in various public sector banks ;Nitesh Ranjan and Ramasubramanian S (both Union Bank of India), M Paramasivam (Punjab National Bank), Joydeep Dutta Roy (Indian Overseas Bank), Malladi Venkat Murali Krishna (Central Bank of India), Rajendra Kumar Saboo (UCO Bank) and Lalit Tyagi and Sanjay Vinayak Mudaliar (both Bank of Baroda).