I think EduKart thinks that Indian peoples are stupids. They are just selling ppt slides for rs2000 or rs6000. And if any one been canvased to buy a course from EduKart please consider watching Udacity and Coursera first where they offer high quality education for free. There are many more web sites who offers high quality materials, following are the list:
Udacity
Coursera
EdX
Udemy