I'm Bijit Sinha. Completed my post-graduation in Master of computer application. I am a freelancer and developed an Android application using Java that can facilitate & improves the donation system between donee & donor via approved Ngo. Also developed a website for a shopping mall for accounting goods & commodities within the mall & users can directly purchase items via this system. In addition to these, I developed Java software based on Encryption and Decryption using the IDEA algorithm that can encrypt and decrypt any text file.