Leading brokerage firms have identified key stocks with significant upside potential for the next 12 months, including DLF, Siemens, and ACC, with expected gains ranging from 20% to 42%. Jefferies has a "Buy" rating on DLF with a target of Rs 1,000, while UBS upgraded Siemens to "Buy" with a target of Rs 8,000. CLSA maintains an "Outperform" rating on ACC, targeting Rs 2,580, reflecting strong growth prospects despite market challenges.