There are a few field guides and collection guides available online for Odonates of peninsular and central India:

1. Andrew, Raymond & Subramanian, K.A. & Tiple, Ashish. (2008). A Handbook on Common Odonates of Central India.

2. Emiliyamma, K.G., Radhakrishnan, C. and Jaffer Palot, Muhamed (2005). APictorial Handbook on-Common Dragonflies and Damselflies of Kerala: 1-67. Zoological Survey of India, Kolkata.

3. DuBois, Robert. (2021). Sampling Design Considerations for Surveys of Dragonflies and Damselflies (Odonata) in Wisconsin. 200.

4. Fraser, F.C (1933). The Fauna of British India, including Ceylon and Burma. Odonata.Vols I. Taylor and Francis Ltd., London.

5. Fraser, F.C (1934). The Fauna of British India, including Ceylon and Burma. Odonata.Vols II. Taylor and Francis Ltd., London.

6. Fraser, F.C (1936). The Fauna of British India, including Ceylon and Burma. Odonata.Vols III. Taylor and Francis Ltd., London.

7. Mitra, T. R. (2006). Handbook on Common Indian Dragonflies (Insecta : Odonata): For Nature Lovers and Conservationists. India: Zoological Survey of India.

8. Needham, James G. 1899. Directions for Collecting and Rearing Dragon Flies, Stone Flies, and May Flies. Washington, D.C. Govt. Printing Office. (Bulletin of the United States National Museum, no. 39)

9. Needham, J. G. (1932). A Key to the Dragonflies of India. Records of the Zoological Survey of India, 34(2), 195–228. https://doi.org/10.26515/rzsi/v34/i2/1932/162568

10. Subramanian, K.A. (2005). Damselflies and dragonflies of peninsular India-A field Guide. E-book of the Project Lifescape.

I hope this helps.

Regards,

Meehir