CA Rudramurthy BV advises buying on dips in Nifty until it stays above 25,000, with 25,200 as strong support. He suggests similar strategy for Bank Nifty above 56,000, anticipating positive Q1 results to drive market highs. Top sector picks include Defence (BEL, HAL), Pharma (Divi’s Labs, Laurus Labs, Biocon), and PSU banks (SBI, PNB).