Vishnu is the maintainer of the material creation. Another name for Vishnu is Narayana. He is one of the Hindu trinity, along with Lord Siva and Lord Brahma, and superintends the mode of goodness. He is full in all six opulences-wealth, influence, beauty, fame, strength, and renunciation. He is renounced because he is not attached to anything in the material world. Lord Vishnu is considered to be the Supreme Personality of Godhead by Vaishnavas.He usually has four hands, which hold a conch shell (sankha), a disc (chakra), a club (gada), and a lotus flower (padma). He has a blue complexion and wears yellow garments. He wears a jewel on his chest called kaustubha. The club and the wheel are the Lord's symbols of punishment for the demons and miscreants. The lotus flower and conchshell are used to bless the devotees. When his incarnation is present on this planet, Lord Vishnu kills the demons and protects his devotees simultaneously.
Bhudevi and Sridevi, both either side of Vishnu (Lord Sri Venkateswara). Bhudevi is the fertility form in which She is Mother Earth. Sridevi is the wealth and knowledge of Her which is seen with Narayan. If both consorts are with Lord Vishnu, Sridevi is on his right and Bhudevi on his left