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In the internet world, some of the information exchange required services defined in the security services X.800. Confidentiality of sensitive data is considered to be one of the security service defined in X.800 which is highly desirable in digital world. Encoding the sensitive information with the help of secret keys helps in maintaining the confidentiality of data. This approach is known as cryptography. The major limitation of cryptographic approaches lies in the fact that the encoding message which was or were produced as output after encryption procedure may attract malicious user on communication channels. They may launch brute force attacks or practice cryptanalysis. This limitation of cryptographic approaches is taken care by steganographic approach. Through steganographic approach one can conceal secret information into carrier. Carrier may be text, audio, image or video. The major limitation of steganography lies in the fact that, if any how steganalyst may aware aboutthe fact that something is concealing in the carrier then purpose of steganography is defeated.