As someone randomly seeing this, and assuming others may, too. Today I learned.

According to Wikipedia:

In motorsports, homologation is the type approval process through which a vehicle, a race track, or a standardised part is required to go for certification to race in a given league or series. The process of testing and certification for conformance to technical standards is usually known as type approval in English-language jurisdictions. The regulations and rules that must be met are generally set by the series’s sanctioning body.[1] The word is derived from Greek ὁμολογέω, homologeo, ‘I agree’.

Here is btw the layout from Wikipedia, as the circuit allows for multiple corner variations:

Source: https://en.wikipedia.org/wiki/Indian_motorcycle_Grand_Prix

Also aerial picture to compare

Source: https://en.wikipedia.org/wiki/Buddh_International_Circuit