The 30-year-old Vidarbha opener struck a match-winning 127 against Ranji Trophy champions Mumbai in the Irani Cup match last season when Rest of India chased down a mammoth 480 in the fourth innings. He also struck a century in the Deodhar Trophy final.
Karnataka batsman had a productive IPL-9, scoring 357 runs to finsh as 2nd highest run-getter for Delhi Daredevils. Nair scored 500 runs in seven Ranji games.
The off-spinner took eight wickets in Rest of India's win in the Irani Cup. He then made five appearances for Delhi Daredevils in the IPL and ended up as DD's second-best economical bowler (7.35).
He was the leading run-getter in the 50-over Vijay Hazare Trophy, with 394 runs in seven matches.
The leg-spinner is currently the leading wicket-taker of IPL-9, with 19 wickets in 11 games for RCB. He was also the side's highest wicket-taker in 2015 with 23 wickets.