Why did the market's boom suddenly come to an end?; Watch this video

This week, the market is seeing a dip. This week, the Sensex and Nifty both experienced declines of 812 points and 200 points, respectively. Bank Nifty barely gained 1 point this week to conclude at 38987. At the same time, the IT index has experienced a significant drop of 1344 points over the past week. Which significant events should we watch out for next week, according to Vivek Mittal, Head of Research at Jagran Business? What are the market's main catalysts?