Answer

In Dadar, Mumbai, the commonly listed Jain dharamshala is:

• Kabutar Khana Jain Dharamshala
  Location: Bhavani Shankar Road, Dadar West, near Kabutar Khana area.

Nearby Jain stay options often listed around Dadar/Mumbai include:

• Shree Jain Adeshwarji Maharaj Dharamshala
  Location: S. V. Road, Mahim, Mumbai — near Dadar.
• Motisha Jain Derasar / Dharamshala area
  Location: Byculla East, Mumbai — not in Dadar, but a well-known Jain place in Mumbai.

Important Note

Dharamshala availability, rules, charges, Jain food/bhojanshala facility, and booking requirements can change. It is best to call the dharamshala or local Jain Sangh before visiting, especially if you need family accommodation, AC rooms, or bhojanshala facilities.

Takeaway

For Dadar specifically, first check Kabutar Khana Jain Dharamshala, Dadar West. If rooms are not available, Mahim and Byculla Jain dharamshalas may be nearby alternatives.