Jeetendra's character name Ravi is shown at the start of the credits, but he was never called by that name in the movie. This character name might have been stuck due to it being his real name.

The film was previously titled "Kya Pyaar Karogi Mujhse".

As of 2016, this movie was 'Jeetendra' last appeared in a mainstream film (he has appeared in a low budget and Bhojpuri movies). However, he has not completely retired from movies.

Jeetendra's last released hindi film. For 13 years now he has not been seen in film as he was always seen for about 35 years. Kucch To Hai was his home productions.

Anita Hassanandani's debut movie.

Rishi Kapoor and Tusshar Kapoor were in the same movie for the first time.

Rishi Kapoor played a negative role for the first time since Bol Radha Bol.

Ding Dong Ding Dole song was a rage that time.

First major role of Yash Tonk in films.He was then popular as Kunal Sikand on television show Kahi Kisi Roz his very first film was an appearance in the song Manzil Na Koi in Sangharsh 1999.This film got him noted in films.

Yash Tonk and Anita Hansnandani both were part of Balaji Telefilms TV serials before entering films.This film to was produced by Balaji Telefilms.

Moon Moon Sen appeared in a known Hindi film after 9 years he last known film was Zakhmi Dil 1994.In between she had releases which were B Grade films or delayed films.

Debut film of Anurag Basu.He is credited as Anurag Bose.

Film was also co directed by Anil V. Kumar.His only directed film known to direct popular Balaji Telefilms serial like.Kahani Ghar Ghar Ki,Kavyaanjali,Kayamat,Kusum,Kasam Se and Karam Apna Apna.

Anurag Basu directed television series for Balaj Telefilms like Koshish... Ek Aashaa,Kya Hadsaa Kya Haqeeqat and few episodes of Kyuki Saans Bhi Kabhi Bahu Thi and Kahani Ghar Ghar Ki. He parted ways from Balaji Telefilms due differences during the film shoot.

Ekta Kapoor and Anurag Basu had a fallout during the films shoot living the shoot incomplete.The film was later completed by Anil V Kumar.But Anurag Basu was still credited for the film.

Rishi Kapoor and Jeetendra are known to be best friends since their younger day sand worked in several films.They worked in a same film after 9 nine years last time they worked in a film was Ghar Ki Izzat 1994.They did not share any screen space in Kuch To Hai.This also marks their last film together.Apart from Om Shanti Om 2007 where many they both appeared in different scenes which had many Hindi film celebrities make a cameo.

Only film where Jeetendra and Tushar Kapoor acted.They appeared in Om Shanti om 2007 for the celebrity song Om Shanti Om.

Kuch To Hai - Kya Pyar Karoge Mujshe opening tune was later turned into "Kyun" from Kambhakht Ishq (2009).

Tusshar later stated he did not like the film. He did not find it scary. He felt with 2 different directors, the films direction got messed up.

The music of the song "Ding Dong" from Kucch To Hai was later used for the song " Bindaas" from Krishna Cottage.