If your Indian debit card is enabled for international transactions then you can use it in Malaysia without any problems. However, using a debit card abroad has many extra charges associated with it which may eat away your money really fast. Instead of overspending by paying your bank unnecessary charges, consider buying a prepaid forex travel card for your Malaysian trip and save money on currency conversion charges, unfair bank exchange rates and Dynamic currency conversion (DCC) charges. For further information, read about the forex card advantages over debit and credit cards