i am intereste in data engineer domain how can I learn from scratch

Hi Sunil,
thanks for reaching out and congratulations on starting your data engineer journey. In order to get on the data engineering track you'll first need to build your programming and theoretical foundation. If you have no prior experience in Python programming, statistics, probability and linear algebra I'd suggest you start there. Here are the links:
https://learn.365datascience.com/courses/python-programmer-bootcamp/what-does-the-course-cover/
https://learn.365datascience.com/courses/probability/course-introduction/
https://learn.365datascience.com/courses/statistics/what-does-the-course-cover/
https://learn.365datascience.com/courses/mathematics/welcome-to-the-course/
After you've gained some experience in the above topics, we offer a variety of Machine Learning topics you can explore in our data science module, including Machine Learning with KNNs, Decision Trees and Random Forests, as well as linear, ridge and lasso regression:
https://learn.365datascience.com/courses/machine-learning-in-python/setting-up-the-environment/
https://learn.365datascience.com/courses/machine-learning-with-k-nearest-neighbors/what-does-the-course-cover/
https://learn.365datascience.com/courses/machine-learning-with-naive-bayes/what-does-the-course-cover/
https://learn.365datascience.com/courses/machine-learning-with-decision-trees-and-random-forests/what-does-the-course-cover/
https://learn.365datascience.com/courses/machine-learning-with-support-vector-machines/what-does-the-course-cover/
https://learn.365datascience.com/courses/machine-learning-with-ridge-and-lasso-regression/what-does-the-course-cover/
We are also currently developing a data engineering course, which should be up in a few months, so stay tuned.
Hope this helps!

Best,
365 Eli