Katrina is followed by Kareena Kapoor, Priyanka Chopra, Anushka Sharma and Vidya Balan for the actress with most images downloaded on mobile, according to the findings of Airtel Mobitude 2012.
Among men, Shah Rukh Khan led in the category of Bollywood actors' wallpaper downloads. Salman Khan and Ranbir Kapoor featured in the top five.
The annual survey of customer preferences captures the 'mobile attitude' of 186 million plus customers in the country.
Its findings indicate that India recorded over 75 million wallpapers (with 300 per cent growth) and 150 million plus music downloads in 2012.
Katrina's "Chikni chameli" number from "Agneepath" was the most downloaded song of the year.
In the Hollywood segment, Kim Kardashian led in the category of images downloaded and also featured in the top five Hollywood celebrities.
Popular hit "Kolaveri di" maintained the top position in terms of downloads in 2012 as well. Though reasonably popular, the worldwide rage "Gangnam style" did not experience similar success among mobile internet users in India and could not beat the success of "Kolaveri di", the survey said.