Hi @Subhankar_Ghosh,
For video processing you want to somehow retrieve the information of corresponding images. For example, this can be done by sequential models like RNNs or 3D CNNs (the extra dimension is for successive images). “All you need” is to wrap a image classifier within a sequential model (or extend one time dimension). Since you did work with image classifiers I’m sure you will get there.
I found these links repository to be helpful:

Large-scale Video Classification with Convolutional Neural Networks - Karpathy 9
HHTseng’s github repo 5
RNNs - Karpathy’s blog 5

Good luck and have fun with your implementation!