How pay will be fixed after promotion in 2007

My basic pay as on 01-01-2006 was Rs 5625/- in the old pay scale of Rs 4500-125-7000 (PRT). I got my promotion to the pay scale of Rs 5500-175-9000 (TGT) on 31-05-2007. Pay fixation option taken from the
date of increment i.e 1st July.
Kindly reply how my pay will be fixed as per 6th CPC.

A B NAIK
ORISSA