Monuments in Eastern India are the singular silent spectator of the onslaught with regard to history, culture and tradition of the region. Eastern India monuments and forts are the manifestation of highly sole lifestyle, approach and mode of the residents of that place. East India possesses a large portion of entire significant catacombs and tombs in India. Various forts, archaeological sites, ancient monuments and remains of national importance are placed in a systematic manner in various geographical settings of the region. East India or Eastern India is that portion of India which includes the states of West Bengal, Bihar, Jharkhand, and Orissa. Historically speaking, the region`s life has circled around its two great river systems, the Ganges and the Brahmaputra which combine in the Bengal plains to form a massive delta of fertile alluvial soil and marshland which is regarded as one of the world`s most fertile regions. This unparalleled location along with the dense forests, shifting river channels, heavy rainfall and recurrent floods provided shape to the destiny of population and had a fundamental influence on the architecture and art of the country. The architecture of the monuments in the states of Bihar, Orissa, Jharkhand and West Bengal are influenced by several invasions.