You could club Mysore -Udupi-Hampi as a five day trip. Rameshwaram -Kanyakumari- Nagercoil plus susheendaram as a five day trip
Mumbai-Pune for 5 days trip
Chennai-Pondicherry 5 days trip
Jaipur-Udaipur-Jaisalmer as five days trip
Bharuch-Vadodara-Ahmedabad as five days trip
Pune- Shani singhanapur-Shirdi as five days trip
Kochi-Ernakulam-Alleppey as 5 days trip Goa-Gokarna as five days trip.
Why don't you plan for Coimbatore. Spend 2 days in the city. And 2-3 days at the Isha Yoga Centre. You can email them and book your stay there. The per day tariff ranges from INR 800 to INR 1300. Here are the best things to do in Coimbatore - https://bulbulonthewing.com/best-things-to-do-in-coimbatore/