Call blocker is your best bet. Also don't pick up on numbers you do not recognize. You can't stop the calls from being originated since they come from India.
This company has called my daughters phone number several times and she is a MINOR , every time that she gets a call
she is in class at school and gets in trouble . I'm trying to stop these calls . Please !
Unless there is a valid reason she needs to receive a call while in school she should leave her phone turned off or at the least on silent so no ringtone is heard while in class. Next, check for available call blocking apps for her phone and install one to block this number and any other bothersome numbers. Finally most service providers allow you to block a small number of phone numbers for free by logging into your wireless account and entering the number. Since this caller appears to be an illegal loan place most likely operating outside the US, calling them and asking they stop calling her phone would not work.