MIG welding is a widely employed joining process across the industry for its many advantages. Similar to other fusion welding processes, the rapid thermal cycles experienced by the base metal results in the generation of thermal stresses, consequently leading to the angular distortion of the weldment in case of thin plates. The post weld rectifications of this distortion can be costly or at times not practically feasible. Therefore, predicting and minimizing angular distortion is essential. The current study seeks to examine the impact of input parameters like welding speed, distance between nozzle and plate, feed rate of wire, voltage and torch angle on the angular distortion, which is the response parameter. A series of trials were performed based on a design matrix; mathematical modeling was done to devise a mathematical formula relating the input parameters with the response parameters. The accuracy of the developed model was assessed through ANOVA, i.e., analysis of variance. Response surface methodology (RSM) was used to visualize the results. Finally, the input parameters were calibrated for minimal angular distortion in present setup. This experimental work is expected to give an insight how stainless steel 304L behaves under different combination of input parameters with regards to angular distortion.