The Saraswati River is considered the most sacred in the Vedic civilization and is mentioned in many Vedic texts.

The Rigveda is the oldest known Vedic text and is a collection of hymns and prayers.

Shiva is not a major god in the Vedic pantheon, but he is one of the most important gods in Hinduism.

The Varna system is the social system that existed in the Vedic civilization and divided society into four classes: Brahmins, Kshatriyas, Vaishyas, and Shudras.

Yajna is the name of the ritual sacrifice that was performed in the Vedic civilization and was used to offer oblations to the gods.

Upanishads are not a type of Vedic literature, but they are a part of the later Vedic texts.

Sanskrit is the name of the language that was spoken in the Vedic civilization and is the oldest known Indo-Aryan language.

Indraprastha is not a major city of the Vedic civilization, but it is a city that is mentioned in the Mahabharata.

The Battle of Kurukshetra is the battle that is described in the Mahabharata and is one of the most important battles in Indian history.

Rama is not a major character in the Mahabharata, but he is one of the most important characters in the Ramayana.

Surya is the name of the god who is associated with the sun in the Vedic civilization.

Narmada is not a major river in the Vedic civilization, but it is one of the major rivers in India.

Agni is the name of the god who is associated with fire in the Vedic civilization.

Brahma is not a major god in the Vedic pantheon, but he is one of the most important gods in Hinduism.

Vayu is the name of the god who is associated with the wind in the Vedic civilization.