Keya - Carter road, near YMCA garden, Sagar darshan Hanuman Nagar, Pali Hill Mumbai Maharashtra

Yes there is one tree in Sagar darshan building where sparrows are still abundant They frequently used to enter our houses or sit on windows but now very rarely.
we have seen crows threatening them or trying to scare them which we believe is the main reason they have diminished. Also the number of crows in the same time period has grown tremendously.