The blockchain network, although robust isn't yet proficient enough to handle a network that is only expanding further by the second. This paper also focuses on the various banking and transaction related fields that the technology tends to or is already expanding in. In the earlier times when the technology was new and did not have many users, blocks with greater size worked out efficiently however a large decentralized network cannot afford having blocks having size greater than 1-4 Mb as this will lead to decline of decentralized network as nodes' memory runs out and the transaction is unsuccessful.