Hi- model 20 A series ESC for sale at only 600 :Rs:
Specs. for esc
Weight: 25 g
· Size: 44 x25 x9 mm
· Constant Current: 20A
· BEC: Switch mode 5.5V/ 3A
· PWM: 8 KHz
· Input: 2 to 4 Li-Po/ 6-12 NiCd/NiMh
http://www.himodel.com/electric/FLY_PRO_Seires_20A_2-4S_Brushless_Speed_Control_Type_FLY-20A-PRO_SB.html (http://www.himodel.com/electric/FLY_PRO_Seires_20A_2-4S_Brushless_Speed_Control_Type_FLY-20A-PRO_SB.html)