IIT kanpur ML course lectures : https://www.youtube.com/watch?v=urvFwbmFkOI&list=PLo2ytBRv4PLduxe4kaDRgc9lDHJGukPhr
course link : https://www.cse.iitk.ac.in/users/piyush/courses/ml_autumn20/index.html https://www.cse.iitk.ac.in/users/piyush/courses/ml_autumn18/index.html
refference books: https://web.cse.iitk.ac.in/users/piyush/courses/books-ml/reftexts.html
matrix coook book: https://www.math.uwaterloo.ca/~hwolkowi/matrixcookbook.pdf