US govt clears sale of six more P-8I aircraft to India, what is P-8I aircraft?

The proposed sale of an additional six P-8I aircraft will allow the Indian Navy to expand its maritime surveillance aircraft (MSA) capability for the next 30 years.

source https://www.jagranjosh.com/current-affairs/us-govt-clears-sale-of-six-more-p8i-aircraft-to-india-what-is-p8i-aircraft-1620040174-1