Pioneeer aur Kenwoood KUCH nahe hain ... thats like saying Civic and Corolla are superb luxury cars! In other words ... Stupidity.
A JBL GT4-10" will cost around 4000rs, its entry level ... the cheapest one of theirs.
JBL GTi will cost in excess of 10,000 ... and those really BANG. I remember a 15" one for sale for 20,000 at a shop. I tried it ... it was :o
As for other brands, Cervin Wega strokers are good. Currently one of the best in the market are JL Audio W7 series and Kicker SoloX series.