Asset management company founder shares Amitabh Bachchan song for investors who believe in 'Buy blue chips and forget'

Devina Mehra of First Global states that 'Buy blue chips and forget' is not a valid strategy. The definition of blue chip stocks changes over time due to the shorter life cycle of companies. She emphasizes the importance of a systematic investment approach. Recent changes to Nifty 50 include Zomato and Jio Financial Services, replacing Britannia and BPCL.