Tender For corrigendum : supply of procurement of uv vis spectro photometer - 9156170113 , camc charges first year 1su 6 months of service units , camc charges second year 1su 6 months of service units , camc charges third year 1su 6 months of service units , camc charges fourth year 1su 6 months of service units , camc charges fifth year 1su 6 months of service units