Same-day or overnight: Ahmedabad from Somnath
When a Madhuli taxi to Ahmedabad should come back the same day, and when the honest plan is a night halt.
Say which terminal and the flight number. A vague 'Ahmedabad' pickup wastes the first hour. The drive itself is about 8 hours and about 410 km. Double it, then add darshan, and you can see whether a return belongs in the same sunset.
Ahmedabad to Somnath is a full highway day, kinder if you land the evening before and start in the morning. A one-way drop and a car that stays are different jobs. Say which one you want in the enquiry so the driver is not guessing at the hotel gate.
One proper meal stop belongs in the plan. A night drive is possible and tiring.
If you already have a hotel, send the area. If you do not, the desk can still run the cab. Hotel booking stays yours unless you ask for an area that is easy at dawn.