Meanwhile, Australian captain Pat Cummins also commented on the DRS controversy, noting that RTS appeared to be different from UltraEdge.
ICC has defended the decision of not to use the Hotspot technology.
Steve Smith's joy at leading Australia to a Test series win over New Zealand that took them back to the top of the world rankings on Wednesday was tempered by the news he had been charged with dissent for his role in a confrontation with an umpire.
BCCI president Anurag Thakur made it clear that while he is ready to accept DRS without the usage of 'Hawk Eye', the world's richest cricket board is not keen on four-day Tests and a two-tier system. "If you don't have a foolproof format in front of you, where is it going to help the game of cricket? I think we should not even [get into] into that," Thakur told ESPNcricinfo when asked about a possible tweak in the longest format.