"Harivansh Rai Bachchan, my father...his death anniversary today 18th Jan. I stand silently at the entrance to his room in Prateeksha and look at the space he breathed his last...!!" Amitabh posted on Twitter.
His father is credited with literary works like "Madhushala" and "Agneepath". He died in 2003.
"I spent more than '60 years of my life with him', a friend consoles me as I lament his loss, many do not get so much time with loved...," added the actor.