Alia Bhatt and Sidharth Malhotra
Alia Bhatt and Sidharth MalhotraSidharth MalhotraFC/Instagram

Bollywood hunk Sidharth Malhotra celebrated his 31st birthday on 16 January. The actor had a working birthday as he is currently shooting for his film "Kapoor and Sons". However, several Bollywood stars wished Sidharth on social media, including rumoured girlfriend Alia Bhatt.

Alia tweeted: "Happy birthday you beautiful person @S1dharthM #HappyBirthdaySidharthMalhotra. (sic)" While the Twitterati were going "awww" over Alia's way of wishing Sidharth, his reply generated some buzz.

Sidharth replied, "Thank you love big hug".

Sidharth calling Alia "love" on a public platform is a big thing for their fans. The duo has never liked to talk about their relationship in public, but this gesture has raised many eyebrows.

Even at Dabboo Ratnani's 2016 Calendar launch, the two made their rumoured relationship quite evident with their PDA. Alia and Sidharth reportedly entered the event together and seemed very comfortable hugging each other, while shutterbugs captured their PDA moment.

They are currently shooting for Dharma Productions' "Kapoor and Sons", which also features Fawad Khan. However, on his birthday, KJo shared a picture of the three actors, saying: "@aliaa08 @fawadakhan_ decided not to cut cake for @S1dharthM they cut this instead!#KapoorAndSons #HappyBirthdaySid. (sic)"

The audience is quite curious to see Alia and Sidharth on the silver screen after such a long time. The two appeared on big screen together in their debut film "Student Of The Year". After that, they were busy giving back-to-back hits with other co-stars.

Earlier, there were reports that Alia, who decided to move out of his parents' house, planned to live in with Sidharth. The reports turned out to be just rumours, but their relationship is still in the news, which doesn't seems to be a rumour.