It's more of mid-week edit to reduce the length of the film by removing three songs, from Hindustan Times:
The original print of the movie featured 13 songs in all — one song
representing each zodiac sign, and a title track. But since mid-week,
three songs have been removed from the new version of the film.
Director Gowariker confirmed the same, “...
Short of watching the movie cuts side by side, it would be very hard to get more specific than the wiki article does.Yet ultimately, they can be summed up as CGI and continuity changes.
George Lucas Felt like the technology at the time limited his vision for what he wanted it to look like. Lots of changes are like that. Other changes are for story. The ...