Actress Alia Bhatt uttering politically-charged "Khela Hobe" slogan is a surprise moment filmmaker Karan Johar packed in the trailer of his upcoming Hindi film 'Rocky Aur Rani Ki Prem Kahaani', which marks his 25th year in the industry.

"Khela Hobe" was the primary slogan of West Bengal Chief Minister Mamata Banerjee and her Trinamool Congress in successfully overcoming the political challenges in the assembly elections of 2021.

As the 'RRKPK' trailer nears the end, Alia, who is shown hailing from a traditional Bengali family, cries "Khela Hobe".

The trailer of the film, which celebrates Karan's completion of 25 years in the industry, was launched by the makers on Tuesday.

Alia stars alongside her 'Gully Boy' co-star Ranveer Singh, who is shown hailing from a Jat family.

The film, which promises enough love, romance and laughter, has an ensemble cast keeping Ranveer and Alia in the main lead.

It stars veterans Dharmendra, Jaya Bachchan, Shabana Azmi in the lead. Bengali actors Tota Roy Choudhury and Churni Ganguly also play pivotal roles in the film.

'RRKPK', which is produced by Dharma Productions, is slated for July 28 release.