I don't think you get bluetooth HU's that easily these days. Last I remember one 6950BT or 7950BT from pioneer.
If you need bluetooth for your mobile why not buy a separate bluetooth car kit.
Anyways, this is a setup I put in a friends Estilo a little similar to the Getz setup. (The rear was a 5.25" but a getz can take 6.5")
HU: Pioneer 5050UB -- Rs.7000
Front: JBL GT-5 650C -- Rs. 4600 (6.5" components)
Rear: JBL GT-5 652 -- Rs. 2700 (6.5" coaxials)
Total cost should be within 16K with Installation.
Ofcourse there are other brands apart from JBL like blaupunkt, Hertz, Illusion audio. JBL also has the GTO range but those are a bit more pricey.
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