TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The 1-6C alkyl in alkyl alkoxy silane in composition-A is chosen from methyl, ethyl, n-propyl, isopropyl, n-butyl, s-butyl, t-butyl, pentyl, hexyl and octyl. The 1-6C alkoxy in the alkyl alkoxy silane and the tetraalkoxy silane in composition-A is methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy silane. The composition-A has average silica particle size of 6-30 nm, preferably 9 nm with solid content of 15-45%, preferably 30%. The number of nonhydrolyzable group in the fluorinated silane in the composition A is 1. The content of the fluorinated silane in the composition A is 1-10 mole %, based on total content of hydrolysable silane in the composition. The alkoxy in the tetraalkoxy titanium compound is chosen from methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy and n-pentoxy. The organic acid in the composition-B is chosen from acrylic acid, methacrylic acid, pentenoic acid, fumaric acid and maleic acid. The total content of water added for hydrolysis and condensation of the titanium-methacrylate complex in composition-B is 1-4 mol%, preferably 2. The ratio of alcoholic solution of silver nitrate to the titania solution is 1-4. Preferred Process: The mixture of titania solution in composition-B and silver nitrate solution is coated to obtain a thin layer having thickness of 10-100 nm, preferably approximately 50 nm. The titania solution in composition-B is diluted with a solvent chosen from ethanol, isopropanol, isopropoxyethanol and/or 2-butoxy ethanol to obtain a solid content of 1-10 wt.%, preferably at 5 wt.% titania. The composition is deposited as multilayers on pristine or oxidized metallic/stainless steel surface by dip coating by diluting the solutions to obtain solar surface with total stack thickness of 10-200 nm, preferably 80-140 nm. The finished pristine metal/stainless steel or oxidized stainless steel surface having surface roughness of less than 0.05 mu m Ra is oxidized under atmospheric air at 500-800 degrees C, preferably 750 degrees C for 5 minutes to 2 hours, preferably 1 hour, where temperature range is maintained at 0.5- 5 K/minute, preferably 1 K/minute. The composition A or B is deposited on finished steel surface to form a single layer, which has absorbance of approximately 90% and thermal infra-red emittance of 13-18%. The austenitic stainless steel surface is partially densified by UV followed by performing thermal densification process, and coating deposition process at 200-300 degrees C, preferably at 250 degrees C for 1-2 hours, preferably 2 hours, where bi layered structure is obtained by coating composition-B on finished pristine metal/stainless steel surface, performing UV curing and coating of composition-A over composition-B at 450-600 degrees C, preferably 550 degrees C for 1-2 hours, preferably 1 hour under 0.05 mbar vacuum pressure. The UV curing of layer B is performed using a UV curing unit having steel belt conveyor for transporting the samples with medium pressure UV lamp at light intensity of 800-900 mJ/cm2 and belt speed of 1-2 m/minute. Preferred Conditions: The composition-A has viscosity of 0.5-2 cP, preferably 1 cP. The mixture/reactants temperature during preparation of composition-A is maintained at 15-23 degrees C before the addition of the acid catalyst.