@praveen_91 Getting multiprocessing code to work with Jupyter Notebooks is tricky. You can probably try out solutions such as https://medium.com/@grvsinghal/speed-up-your-python-code-using-multiprocessing-on-windows-and-jupyter-or-ipython-2714b49d6fac 130 to see if it works for you.
There is an issue open for this on ipython as well: https://github.com/ipython/ipython/issues/12396 69.