Punjab National Bank [PNB] — Denied to open account and misbehave

Address:

rohini

My sister go to pnb rohini sector 7 branch to open savings account they denied and tell her to approach other branch which is in rohini sector 5 and that branch is less far than rohini sector 7 branch.
they told her [wahan se khulwao wo jyada pass hai] then we reached rohini sector 5 branch then they also denied to open account and tell [family me kisi ka account yahan hai to khulega wrna nahi khulega]
they are talking in very recless manner and says [tum branch chalate ho ya hum chalate hain nahi kholenge jo krna hai kar lo]
i want to know is this their right to denie to open account becouse of such reasons and if not then they have to answer why they denied and want to register complaint against rohini sector 7 branch and rohini sector 5 branch..