Choosing between a 4.5-inch and 6-inch borewell depends on your water requirements, property type, pump capacity, and budget. This guide explains the key differences in drilling cost, pump compatibility, water yield, casing strength, and future upgrade flexibility. Learn why 4.5-inch borewells are commonly suitable for homes, while 6-inch options are better for commercial, industrial, and agricultural needs. Explore this Ahmedabad-focused guide before selecting the right borewell diameter for your property.