Added Supriya: "Seriously, we never thought that we'd win, although a hoarding declared that much on our behalf. Never! We always went on stage wondering if it would be our last performance."
They plan to use the Rs.5 million they won as prize last month for the education of their daughter.
"We're constantly being asked what we'd do with the prize money. Very honestly it hasn't sunk in yet. Of course, we will use it for our daughter's education.
"But beyond that we may just decide to put it all away in a post office scheme, to remind us later of what the whole experience meant to us," said Supriya.
Sachin agreed: "I will use it for our daughter's education. There's no greater pleasure in life than to give your offspring the best you can."
The winning couple felt only sorry for the first runner-ups.
"No, I didn't feel any regret when Manish and Poonam lost to us. Why should I? All said and done, 'Nach Baliye' was a competition and there could be only one pair of winners. I'm glad it was us!
"We worked hard for it. Besides, the decision was taken through an audience poll. We respect the decision. We had butterflies in our stomach when we went on stage for the final," Sachin said.
His wife added that Manish and Poonam were also very good. "And though everyone kept saying we had an edge, I felt they could easily outdo us at the finale.
"We're told Varun Bandola and Rajeshwari could've given us a run for our money. I'm sure they would have. They were excellent, and so were all the other couples. We were just lucky to get so far, and actually win the prize."
Added Sachin: "After the grand finale, I went and hugged my rival Manish while my wife hugged his wife Poonam. Yes, there's a sense of great achievement.
"All through 'Nach Baliye', we were constantly reminded that we were the oldest couple in the reckoning. I didn't mind. It was the truth. It spurred us on to try harder," said Sachin, who had a successful career as child artist in Hindi films decades ago.
"'Nach Baliye' taught us that rhythm and pace are essential not only in life and marriage but also in dance. It's all about getting the timing right."
Sachin's advice for everyone out there who wants to be an achiever is: "Never underestimate yourself and always be adventurous. I'd like to think my wife is more adventurous than I am. She married me, didn't she?"