Go easy fellas, it's my first bit a tab.  I couldn't find many bass tabs around on the 
for Kasabian, and I don't really know why, they are a good band.  Here is part tab (check 
riff change) for I.D. (Track 4 on Kasabian CD [UK]).

Basically is two chords E and C.  There is a bit of bass walking between chords and I 
added a simple one here, but feel free to use your inspiration, and let me know if any 
should be made here!!!!  Happy Bassin' guys and gals!!

Standard Tuning: EADG
Have a go with some effect distortion too / bass boost!!!

1.
G |-----------------------------------|
D |-----------------------------------|
A |-----------------------------------|
E |--0----0--0--0--0----0--0--0--0--0-| Check your pluck timing here!!!


2.
G |-----------------------------------|
D |-----------------------------------|
A |--3--3-3-3-3-3---------------------|
E |---------------5-3-2-0--0-0-0-0-0--| Repeat (1. and 2.) until end.

Listen to the CD and find a bass riff that suits your style!!!!

Hope this helps and let me know if you find any decent riffs that fill in well!!!!