IMDb ratings are indeed surprising. The ranks are announced based on the ratings given by respective fans of the actors and actresses.
It can be said that 2022 is the year of Alia Bhatt as she scored huge recognition and successes this year like Gangubai Kathiawadi, Brahmastra: Part One Shiva, and Darlings. She's given Rank#2.
Do you know who is at the top? He's Dhanush! Except for doing a few Tamil films, he didn't come into pan Indian discussion like that of Yash, Allu Arjun, Ram Charan and Jr NTR. But still he's on the top of all taking the Rank#1.
The most famous KGF2 actor Yash is in 10th rank much to the surprise. While Ram Charan is in 4th spot, Jr NTR is in the 8th. Another big surprise is Aishwarya Rai standing in third position. All that she did is a character this year in PS1.
Hrithik Roshan who scored a miserable flop with Vikram Vedha this year got the 6th rank. Samantha stood in 5th, Kiara Advani in 7th and Allu Arjun in 9th place.