<p>Electric vehicles (EVs) are a sustainable mode of transportation, significantly reducing greenhouse gas emissions. The development of EV charging stations is crucial for supporting the growing number of EVs and integrating them into smart grid infrastructure. Efficient use of these stations requires optimized energy management and accurate forecasting of EV charging behaviors. However, forecasting accuracy is often hindered by missing data due to connectivity issues and equipment failures. To address these challenges, this study introduces a novel data imputation method ResiDualNet (Residual Dual BiLSTM-CNN Path Network), which is a residual sequence-to-sequence technique for imputing missing EV charging data. This model effectively captures underlying temporal and long-term dependencies, demonstrating strong performance across various scenarios. We compare our proposed model with two commonly used imputation methods KNN and Mean Imputation and one generative model, Generative Adversarial Network (GAN), across four different EV charging datasets. Experimental results demonstrate that our model significantly outperforms the others, showing an average improvement of 82% in terms of root mean squared error (RMSE) across all datasets. To further assess the effectiveness of our imputation model, we utilize three cutting-edge and newly introduced forecasting models: Bidirectional Long Short-Term Memory (BiLSTM), Mogrifier LSTM, and Sample Convolution and Interaction Network (SCINet) to predict EV charging load. The results indicate that SCINet outperforms the other forecasting techniques. Moreover, for SCINet, the dataset imputed by our proposed model performs second best after the real dataset, confirming the effectiveness of our imputation approach in improving forecasting accuracy for EV charging data. The complete source code is provided in the following repository: <a href="https://github.com/fffahim/ResiDualNet.git">https://github.com/fffahim/ResiDualNet.git</a></p>