On the show, celebrities are grilled about their personal lives and controversies around them. The 36-year-old actress said she was taken a back by Ranbir's openness on "#NoFilterNeha".
"The only star, who took me by surprise, was Ranbir as I thought he would be very guarded on my show," Neha told PTI.
"He just didn't hold back. He didn't give up on any questions. He turned out to be so uninhibited, which was quite amazing."
When asked what made her so surprised about the "Tamasha" star on her show, Neha said, "It's because he gave us a few perks about being his cute, charming and handsome self and what are the advantages of being Ranbir Kapoor."
The show, which airs once a week, every Tuesday on music streaming app Saavn, features Neha's friends from movies, sports and music world including Karan Johar, Sonam Kapoor, Yuvraj Singh, Vishal Dadlani, Arjun Kapoor among others.
In the coming episodes, Ranbir's sister-actress Kareena Kapoor will join Neha for an unfiltered conversation, where the two will be heard discussing babies names as the 36-year-old "Ki & Ka" star is expecting her first child with actor Saif Ali Khan.
The actress also mentioned about her very first guest filmmaker Karan Johar, saying he was a "good story teller", who actually made the show very interesting.
Neha feels that the show has given her a chance to know her friends even better.
"There were few stars that I thought would never say yes to come on my show but I was surprised when they (Sonam Kapoor and Kangana Ranaut) agreed to be guests."
The actress said through her show she is trying to take celebrities away from their cautious sides.