Amuthan, R. Co Relating NIFTY 50 Index Trend’s Impact on NSE’s Sector Based Indices Growth Momentum in Post COVID-19 Led Indian Economy With Special Reference to NIFTY Bank, NIFTY Consumer Durables, NIFTY IT and NIFTY Pharma Indices Using Arithmetic Modelling. TURCOMAT 2021, 12, 2184-2189.