Bajaj Finance — 6-8 calls a day for loan and overdraft facility

This is very disappointing to have frequent calls from bajaj finance (6-8 calls a day) at any hour of the day be it early morning or even late night like 9:30 pm.
This brings so much of disturbance to our personal and professional life. Every time they call with the new mobile number and i keep blocking them but it never stops. Since i am in service industry, i can’t avoid calls and every call from unknown numbers i take. 80% o[censored]nknown numbers in a day are from bajaj finance executives. This is insane. I would blame vodafone-idea for selling out data to these companies to these companies to make their business and harassing citizens.
I would request strict actions against them. They are not supposed to call the customer with the unknown mobile numbers. They have to use registered numbers for business. If this is not stopped, i would sue them.