This study aims to examine the key training factors that significantly impact the learning outcomes of trainees. A comprehensive framework is proposed to investigate the interrelationships among various training components, trainer performance, training usefulness, and their effects on metacognition and learning. Empirical testing of the model is conducted using the partial least squares structural equation modelling approach, analyzing data collected from 322 public servants in North India. The findings reveal that almost all the focal factors comprising a training programme, such as the usefulness of training, trainer performance and metacognition, positively influence trainees' learning. While training agencies should consider all components of the training programme, the perceived usefulness, trainer performance and trainees' metacognition are particularly influential factors in facilitating learning. Training components and trainer performance predict the usefulness of training. This study integrates all focal factors of a training programme into a comprehensive framework using employee data, explaining a significant portion (45%-64%) of the variance in trainees' learning. These findings emphasize the importance of addressing these focal factors thoughtfully when designing and implementing effective training programmes.