Dear Sudhir Kumar, without more Details to the product, the materials, your facilities and the Chosen manufacturing process sequence it is impossible to provide any suitable answer. Please provide some Information e.g. product by product.
Naturally, the best route between casting and plastic deformation is plastic deformation. This is due to the possibility of obtaining quality products after some of the processes of plastic deformation (sheet punching, deep drawing, stamping, rolling, etc.). The products obtained by these methods also have better mechanical properties (tensile strength, hardness). Part of the plastic deformation methods yielded ready-to-use outlets.