sir what should be the minimum thickness of a load bearing wall?

Load Bearing Walls

•  These walls take the load of super structure and transmit it to the ground through foundation. 
•  These can also serve the purpose of dividing the space into required rooms etc.
• These are also accommodating door and windows where required. 
• These are of 9” or more thickness.
• Such walls are made in first class bricks and rich mortar.

Non Load Bearing Walls

• These walls serve the purpose of dividing the space into required rooms etc.
• These are also accommodating door and windows where required.  
•  These can be made into thin sections to save the space.
• Non load bearing walls are only partition having no load of super structure so these can be easily changed whenever required to change the space of the room. 
• These walls are made 3 inches, 4.5 inches and 9 inches thick as per the requirement of the site.