GST on Solar Plant - Goods and Services Tax - GST

Dear All One of my clients wants to transfer the solar plant under as is where is basis which was assembled at his land few years back. Materials used for assembling were subject to various rates of GST. At what rate GST is to be charged? He will lease out the land to the buyer. Can we treat this as composite sale, thus attracting GST @12% which is applicable to solar panel being principal supply? Dear All One of my clients wants to transfer the solar plant under as is where is basis which was assembled at his land few years back. Materials used for assembling were subject to various rates of GST. At what rate GST is to be charged? He will lease out the land to the buyer. Can we treat this as composite sale, thus attracting GST @12% which is applicable to solar panel being principal supply? Dear All One of my clients wants to transfer the solar plant under as is where is basis which was assembled at his land few years back. Materials used for assembling were subject to various rates of GST. At what rate GST is to be charged? He will lease out the land to the buyer. Can we treat this as composite sale, thus attracting GST @12% which is applicable to solar panel being principal supply?