I totally agree with samsara.. the chord progessions in most of the oldies blues/rock numbers are same and they sound much similar.. you can listen to numbers by Muddy Waters, Stevie Ray Vaughan, Jimi Hendrix, Led Zepplin, Black Sabbath, BB King, Buddy Guy, Eric Clapton & more; they have similar chord progessions, rythms and tempos.. even also in their own numbers, they have similar patterns ... I think these are the fundamentals of blues/rock music..

In case of Mukti and Revival, they have done lots of creative work with the song.. the riffs, blues licks and bass lines all sounds too original and one of their kind.. there might be some similarity with chord progression and melody (only the initial part of pakistani song sound similar), it can't be termed Plagiarism .. NO.. NO.. for me Mukit and Revival rocks !!! and they are talented and creative bunch of guys..

Regarding Joe Satriani / Coldplay.. I am the greatest fan of Joe Satriani.. I don't count Coldplay as a musicians.. period.