Axis Bank — floating interest rate not being reduced in line with market rate

I have taken 2 floating rate housing loans from axis bank having account no [protected] and [protected]. Recently they have offered the housing loans to all new customers at 9% to 8% pa but the rate offered to existing customers remain high at 10.75% to 11.25% pa.

why such a disparity to be done ?

Why cant existing loans rate come down to the rates offered to new clients for similar period and amount ?

request you to reduce the interest rate to the rates offered for new customers and also reverse the excess interest charged immediately in line with rates offered to new clients