Hi Subhasish, Depending on where you stay, activities you choose to do, mode of transportation you use, the cost will vary. But you should keep an average budget of Rs. 30000 if you are starting from Delhi. You can read more about Ladakh in the trips attached below. Keep exploring!
Cost for Ladakh trip will lean on various factors.Such as: Number of people travelling
Number of days of stay
Places you are going to visit
I would suggest you to program your trip for 7 to 8 days so that you can cover most of the places and you have sufficient time to relax and enjoy the beauty of Ladakh. Approximately it may cost 42000 per couple. To explore Ladakh without missing out any places you can take help of https://www.funstay.in/ladakh-tour-packages.