Most widely used technique over the internet for communication is the text-document exchange. This text document may contain valuable data or some general information of any kind. If this text document contains some important information and if gets hacked then they may change information about it or may misuse that information. Because of all these reasons we need some technique for information hiding within a text document while communication over the internet. Although there are lots of text-based information hiding techniques present and proposed by many authors but these techniques have some drawbacks such as poor robustness, lower embedding rate, and semantic clutter. Due to all these flaws in the existing system many time the information is hacked or extracted by the interceptors. To mitigates all these drawbacks of existing system or techniques we proposed a new technique based on the hash function and the invisible ASCII character replacement method. In this approach, we first find the binary formatted information which is added by even numbers of 1’s for even parity, after that the space character in every carrier is replaced by SOH with the help of some replacement algorithm. In the third stage, a hash value is generated. At last the hash value is compared with the encoded secret information.