Ancient Indian Rishikas contributed verses in the Vedas. Here is a chronological account of 22 Rishikas, who wrote Vedic Suktas in Rigvedic era:

1. Aditi Dākshāyani (~11250 BCE): Aditi was a daughter of Prajapati Daksha. She married Rishi Kashyapa. She was the author of many Mantras of Rigveda (4.18.4 & 7 and 10.72).

2. Apālā Atreyi (~11000 BCE): Apala was a daughter of Atri Rishi. She was a junior contemporary of Rishika Romashā. She was the author of Rigvedic hymn 8.91.

3. Dakshinā Prājāpatyā (~11250 BCE): Dakshinā was also a daughter of Prajapati Daksha. She was the author of Rigvedic hymn 10.107.

4. Ghoshā Kakshivati (~11050 BCE): Ghoshā was a daughter of Kakshivat and a granddaughter of Rishi Dirghatamas II. She was the author of Rigvedic hymn 10.39.

5. Godhā (~11000 BCE): Godhā was the author of Rigvedic hymn 10.134.6-7.

6. Indrāni (11150 BCE): Indrāni was the wife of Indra. Indra was a title of the king of Rigvedic era. There were many Indras. She was the author of Rigvedic hymn 10.86.

7. Juhu Brahmajāyā (~11225 BCE): Juhu was the wife of Brahma III. She was the author of Rigvedic hymn 10.109.

8. Lopāmudrā (~11225 BCE): Lopāmudrā was the wife of Rishi Agastya. She was a daughter of the king of Vidarbha and a contemporary of Kashi King Alarka, grandson of King Pratardana. She was the author of Rigvedic hymn 1.171.

9. Ratri Bhāradvāji (~11000 BCE): Ratri was a daughter of Rishi Bharadvaja. She was the author of Rigvedic hymn 10.127.

10. Romashā (~11050 BCE): Romashā was a daughter of Rishi Brihaspati. She married King Svanaya Bhāvayavya. She was the author of Rigvedic hymn 1.126.

11. Saramā Devashuni (~11300 BCE): Saramā was a messenger of King Indra. She was a contemporary of King Divodasa Atithigva. She was the author of Rigvedic hymn 10.108.

12. Sarparājni (~11200 BCE): Sarparājni was a wife of Naga King. She was the author of Rigvedic hymn 10.189.

13. Shashvati Angirasi (~11200 BCE): Shashvati was a daughter of Rishi Angirasa. She was the author of Rigvedic hymn 8.1.34.

14. Shachi Paulomi (~11300 BCE): Shachi was the wife of King Shakra also known as Indra. She was a daughter of Asura King Puloma. She was the author of Rigvedic hymn 10.159.

15. Shraddhā Kāmāyani (~11100 BCE): Shraddha was a daughter of Kama and Rati. She was the author of Rigvedic hymn 10.151.

16. Sikatā Nivāvari (~10900 BCE): Sikata was the daughter of Rishi Nivavara. She was the author of Rigvedic hymn 9.86.11-20.

17. Suryā Sāvitri (~11400 BCE): Surya was a daughter of Savita. Her sister Tāpti married Kuru King Samvarna. She was the author of Rigvedic hymn 10.85.

18. Urvashi (11240 BCE): Urvashi was a wife of King Pururava. She was the author of Rigvedic hymn 10.95. This hymn of Urvashi is in fact a dialogue between Urvashi and Pururava.

19. Vāgambhrini (10900 BCE): Vāk was a daughter of Rishi Ambrina. She was the famous author of Devi Suktam of Rigveda 10.125.

20. Vasukrapatni (11150 BCE): She was the wife of Vasukra and daughter-in-law of Indra. She was the author of Rigvedic hymn 10.28.

21. Vishvavārā Atreyi (11250 BCE): Vishvavārā was a daughter of Rishi Atri and Anasuya. She was the author of Rigvedic hymn 5.28.

22. Yami Vaivasvati (~11225 BCE): Yami was a daughter of Vaivasvata Manu. She was the author of Rigvedic hymn 10.10.