I do not know the book the GP mentions about, but the best cookbooks happen to be in languages of the region of India, where the food is consumed. If you can find the English translations of these, that is your best bet. The other option is to buy regionally produced (often no photos, poor print) english books. You need to roll with the ingredients being called as-is, and need to repurpose it.
One such popular book, which has been in print for 65 years, is called "Samaithu Paar" (Loosely "Try to cook"). The original book was in Tamil, but Penguin has published an extract of sorts in English - https://penguin.co.in/book/non-fiction/the-best-of-samaithu-...
Thangam Phillip is not like the typical food-porn Indian cookbook, it is a two volume encyclopediatic book which she wrote in the early years of independent India, originally to assist the nascent hospitality Industry.