Mumbai is linear, so local intent is even narrower than in other metros
The city runs north to south along a few transport corridors, and a customer in Borivali will not travel to Colaba for a routine service. Google resolves local intent accordingly, and travel time rather than distance is what governs the customer’s decision. Businesses optimising for Mumbai as a whole compete with everyone across a two hour commute for traffic that cannot convert. The winnable ground is a small number of localities along your own corridor, with a Business Profile whose service area matches where customers realistically come from.