Every country frames different monetary, fiscal and investment policies for the economy's growth, and these policies play a vital role in the nation's economic development. GDP is considered the most significant indicator of economic growth. However, GDP itself affects and is affected by numerous factors. Hence it has become pre-eminent for researchers to study their interplay in different economies and their overall impact on economic growth. This research paper aims to study the impact of Foreign Direct Investment (FDI) on Gross Domestic Product (GDP). The current study is based on secondary data collected from the Word Bank database from 1991-2021. Econometrics model Autoregressive Distributed Lag model has been used to process the data. The study revealed mixed results, i.e. some lags have a significant and positive effect while others have no significant effect. However, FDI has a significant and positive impact on GDP.