I am from India . my mother took money from money lender rs.1,50,000 he gave her cheque of 1,50,000. in return?

• how to save money in a bank account
• court reporter

my mother gave him one blank cheque as a guarantee. now he issued that cheque in the court. & filled the amount of rs.3,50,000. now please tell us how we can defend ourselves.

I am from India . my mother took money from money lender rs.1,50,000 he gave her cheque of 1,50,000. in return?