The key purpose of this study is to gauge the effect of yearly union budgets spanning from 2010 to 2021 by observing yields and volatility in the Indian bourse. Overall, 12 union budgets are considered in the Indian scenario. Further, the present work strives to relate the market returns with the investment activities adopted by foreign institutional investors (FII) and domestic institutional investors (DII). The event, i.e., the proclamation of the budget happens on February 1 every year, and therefore 60 trading days which are sub-divided into 30 days before the budget and 30 days after the budget has been analyzed in the study. Moreover, the event window of 60 days has been bifurcated into a period of pre-and post-3 days, pre-and post-15 days, and pre-and post-30 days around the budget. Paired samples T-statistic and F-test have been used in the current study. The results suggest that the medium-term returns are significantly influenced by union budgets. The volatility is greatest in the short-term period after the budget proclamation and it reduces with the increasing time. One startling thing to observe is that falling returns and rising volatility in the short-term period post-budget are due to the selling activities of foreign investors. It is recommended to hold the stocks in the post-budget short-term period irrespective of the falling returns till the long-term to book profits.