The automobile industries design smart vehicles, and the vehicle population is growing rapidly along the roadside. The VANET communication is cardinal of ITS, as it instructs the drivers about the driving environment through safe and comfortable messages. Hence, secure and reliable vehicular communication is needed to transmit the messages among vehicles successfully. The blockchain is a novel technology that offers distributed ledgers and a bitcoin cryptocurrency model to assure secure and reliable communication in the network. The blockchain with VANETs offers numerous novel opportunities and use cases in ITS. The blockchain maintains the trustworthy information of vehicles by creating irreversible blocks and allows the vehicles to access the history of blocks of the public blockchain at any time. Moreover, numerous existing literature uses the advantages of the blockchain to accomplish a secure and reliable VANET communication model.