His statement comes in the backdrop of soaring non- performing assets (NPAs) of various banks.
Addressing an event here, he said over 95 per cent of the fraudulent activities were reported from the financial sector, including banks, insurance companies and cooperative societies.
About 80 per cent of such fraudulent activities were reported from the public sector banks, while 15 per cent were reported from the private sector banks, Bhasin added.
Referring to an analysis of such acts of fraud, he said while the number of such cases was less as far as the public sector banks were concerned, the amount involved in these cases was higher than the private sector banks.
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He added that a good banker could understand what was right and what was wrong.
"Sometimes, it is due to lack of knowledge, sometimes it is because of appraisal skills, sometimes because of external pressure, sometimes due to connivance or complexity or putting too much trust in someone. These are the main factors which lead to frauds," Bhasin said.
"Various agencies are working day and night to get that borrower back, to recover the money," Bhasin said, in an apparent reference to the owner of the airline, Vijay Mallya.
The amount involved in bad loans had risen to Rs 6,06,911 crore by December 31, 2016, Union Minister of State for Finance Santosh Gangwar had said in a written reply to the Rajya Sabha in March.