I have a sudden interest for indie style music. Both indie rock and regular indie. could someone tell some good bands/songs to download?

Electric President, "Insomnia" is a good song from them
Shout Out Louds, "Wish That I Was Dead Pt. 2"
Bloc Party, "Blue Light"
The Shins
The Pixies, of course

If you want more recommendations, you're going to have to be more specific than "regular indie". Indie music is simply music published on an independant record label, so that covers a whole lot of genres.

Something tells me you're referring to a lot of alt rock, if that's the case, here are some more bands:

The Subways
Blur
Remy Zero
Cake

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Apse
Sigur Rós
Maximo Park
The Shins²
Decemberists
Mew (may be considered a bit more mainstream)
Kaiser Chiefs
Kasabian
Millionaire
The Rapture (!!!!)
Soulwax


examples