Is bt cotton and gm cotton same?

Bt cotton and GM cotton are closely related but not identical. Bt cotton is a specific type of genetically modified (GM) cotton that has been engineered to express a protein from the bacterium Bacillus thuringiensis (Bt), which helps protect the plant from certain pests. While all Bt cotton is GM cotton, not all GM cotton is Bt cotton, as GM cotton can also refer to other genetic modifications that may enhance traits like herbicide resistance or drought tolerance.