Filmmaker Mira Nair on Sunday said it”s “virtually impossible” to talk about Irrfan Khan in past tense as the actor was alive for everything in life.Irrfan, 54, died in a Mumbai hospital on Wednesday after a two year fight with a rare form of cancer. He was buried at the Versova graveyard.During the digital home-to-home fundraiser concert, ”I For India” which streamed on Facebook, Nair, who had helmed Irrfan”s debut Salaam Bombay and The Namesake, paid tribute to the actor.