Visit the famous Mahakaleshwar Jyotirlinga — spiritually significant; main darshan windows are open early (Bhasma Aarti is performed pre-dawn; regular timings approx 5AM–12PM and 4PM–9PM).
Start the long drive back to Pune. If you want to include Maheshwar as a quick stop on the way south-west, note this extends driving time considerably; straight return is fastest (approx 13–14h).
Arrive back in Pune late evening — end of a fast-paced 3-day road trip that covered Ujjain first and Gwalior on the return loop (optional side stop Maheshwar/Omkareshwar required extra time).