"For the first time ever in my remembrance, Jaya brought in a Christmas tree in the house and decorated it with the finest trappings of all that goes to make it look inviting and attractive," Amitabh posted on his blog www.bigb.bigadda.com.
The Bachchan household was full of guests when the clock struck midnight, and Jaya not just arranged for gifts for the family but also for the guests.
The 68-year-old actor said his wife's gesture left him overwhelmed.
"She hung little gifts for us all and as the midnight hour struck, asked us over to look for our goodies. It was so sweet and generous and considerate to have done all that - and all done quietly, all by herself! Oh ! Such a wonderful moment," he wrote.
Jaya, a perfect homemaker, also treated everyone with some "special cooking".
Amitabh went down the memory lane and recollected how he used to celebrate Christmas in his earlier days.
"I am so nostalgic of the many Christmas eves celebrated throughout these 68 years! The midnight carol singing in the cold of northern India, the coffee breaks to keep us warm and awake, those visits to the neighbours and then the little gifts that we received when we went across," the actor wrote.
"The special cake and pastry for the occasion. The mid-night mass that we attended with all our friends in the nearby church and just such a feeling of warmth and happiness throughout," he said.