Delhi to Mumbai on NH48 is a long-haul, not a flex. About 1,400 km means two driving days for almost every mass-market EV, even 600 km-rated SUVs, once you include HVAC, speed, and the fact that you will not charge from 5% to 100% in twelve minutes at every stall. Decide the overnight city first — Jaipur, Udaipur, Ahmedabad, or a highway hotel with a known gun — then plan each day’s SOC walk separately in EV Grids.
Rajasthan heat after Jaipur in May is a Wh/km event. Gujarat’s NE1 stretches are fast, which is also a Wh/km event. The planner’s overnight bias exists so the last stop of the day can sit near lodging. Do not arrive at a city-centre hotel at 11% hoping the basement AC charger is free.
Split the Maps itinerary per day. A 14-stop waypoint list is how Google Maps gets ugly. Plan Delhi → overnight city, then overnight → Mumbai, each with backups. Indicative session costs will look large in rupees; compare them with diesel on the same days using the trip-cost page, and still confirm the pole tariff.