The Rigveda consists of 10 Mandalas, numbered from 1 to 10. There is no Mandala 11.

Indra is the most frequently mentioned deity in the Rigveda, and is often associated with thunder, rain, and war.

Hymn 3.62.10 of the Rigveda is known as the 'Gayatri Mantra'. It is a sacred verse that is often recited during religious rituals and ceremonies.

The Nasadiya Sukta is a hymn of the Rigveda that speculates on the origins of the universe. It is one of the most famous and enigmatic hymns in the Rigveda.

Hymn 1.1 of the Rigveda is dedicated to the god Agni, the god of fire. It is the first hymn of the Rigveda, and is often recited at the beginning of religious ceremonies.

The Surya-Soma Sukta is a hymn of the Rigveda that describes the wedding of Surya, the sun god, and Soma, the moon god. It is a beautiful and poetic hymn that celebrates the union of these two deities.

Hymn 7.86 of the Rigveda is dedicated to the god Varuna, the god of the sky and the waters. It is a powerful and majestic hymn that praises Varuna's wisdom, justice, and mercy.

The Indra-Vritra Sukta is a hymn of the Rigveda that describes the battle between Indra, the god of thunder, and Vritra, the serpent who holds back the waters of the sky. It is a dramatic and exciting hymn that celebrates Indra's victory over Vritra.

Hymn 1.154 of the Rigveda is dedicated to the god Vishnu, the god of the sun and the preserver of the universe. It is a beautiful and poetic hymn that praises Vishnu's power, wisdom, and benevolence.

The Hiranyagarbha Sukta is a hymn of the Rigveda that describes the creation of the world from the cosmic egg. It is a beautiful and poetic hymn that celebrates the birth of the universe.

Hymn 1.114 of the Rigveda is dedicated to the god Rudra, the god of storms and destruction. It is a powerful and awe-inspiring hymn that praises Rudra's might and majesty.

The Ushas-Surya Sukta is a hymn of the Rigveda that describes the marriage of Ushas, the goddess of dawn, and Surya, the sun god. It is a beautiful and poetic hymn that celebrates the union of these two deities.

Hymn 3.59 of the Rigveda is dedicated to the god Mitra, the god of friendship and contracts. It is a beautiful and poetic hymn that praises Mitra's loyalty, faithfulness, and justice.

The Indra-Ahi Sukta is a hymn of the Rigveda that describes the battle between Indra, the god of thunder, and Ahi, the serpent who holds back the waters of the sky. It is a dramatic and exciting hymn that celebrates Indra's victory over Ahi.