Tambe, who has been doing well in the local leagues of Mumbai, won the vote of the selectors on Monday as he was included in the 15-man squad.
"I am very very happy today to be picked for Mumbai Ranji Trophy squad," Tambe told ThatsCricket on his selection.
Tambe, the legspinner was known in Mumbai cricket circles for his exploits with the ball. However, the Indian Premier League (IPL) brought him to international limelight. IPL and this year's Champions League Twenty20 (CLT20) further pushed him into the spotlight.
"It was always my dream to play for Mumbai. I am close to realising it. Even my family is very very happy about my selection," said Tambe.
Today's selection is the result of Tambe's 25-wicket effort in the ongoing Kanga League in Mumbai for his team - DY Patil Sports Academy.
"I have taken 25 wickets in 5 matches so far in the Kanga League 'A' Division. I have two six-wicket hauls and yesterday I had a five-for. After this performance, I was hoping for a call-up. It helped," added Tambe.
On queried whether he is confident of making his first-class debut on December 6, Tambe said: "Mumbai team is doing well at the moment. If the team needs me, I am there. If there is a chance, I will give my best."
Tambe paid rich tributes to his Rajasthan Royals captain Rahul Dravid for giving him lot of confidence.
"It was a dream come true for me to play with Rahul Dravid. He is a great person. He helped me a lot during IPL and CLT20. His words inspired me to do well," said Tambe. He thanked Royals' franchise and IPL for the opportunity.
Last month, the iconic Sachin Tendulkar, at 40, bid adieu to international cricket at Wankhede Stadium. At the same venue, another 40 plus veteran might get a chance to begin his first-class journey.
As they say, age is just a number.