A method and system for anonymizing data to be transmitted to a destination computing device is disclosed. Anonymization strategy for data anonymization is provided. Data to be transmitted is received from a user computer. Selective anonymization of the data is performed, based on the anonymization strategy, using an anonymization module. The received data includes a plurality of characters encoded in a first encoding scheme, with a first subset of characters assigned to a first language. The first subset of characters are encoded in a second encoding scheme to derive a modified data. The second encoding scheme has number of bits sufficient to encode total number of characters in the first language. The modified data is anonymized to derive an anonymized data. The anonymized data is transmitted to a destination computing device.