I have a small locker with HDFC bank , Pune and rent is Rs. 1500/- per annum.
Now from next year HDFC is asking Rs. 10000/- per annum as locker rent. This is more then 8 times hike in single year. so is there any guidelines from RBI, rules that how much hike every year is allowed from RS. 1500 to Rs. 10000/- is too much hike