Eduonix - Programming Courses for free

How is it free? It says ₹299

Post title is mileading. 50% discount on product page, once added in cart 50% discount on cart value. Meaning maximum 75% discount is allowed only. There site states below info -

This Season, we are offering all our learners Flat 50% Site-wide Discount on all Courses, E-Degrees, Bundles and Learning Paths. That’s not all. You’ll also be entitled to a 10-50% extra cart discount during checkout.
You can avail a 10-50% Extra Discount at checkout by using our cart coupons.
The slab for the extra discount at checkout along with the coupon details are as follows:

You will get Flat 10% Off at checkout on the purchase of ₹600 & above by using Coupon Code “EASTERIN10”
You will get Flat 20% Off at checkout on the purchase of ₹1750 & above by using Coupon Code “EASTERIN20”
You will get Flat 30% Off at checkout on the purchase of ₹3500 & above by using Coupon Code “EASTERIN30”
You will get Flat 40% Off at checkout on the purchase of ₹5500 & above by using Coupon Code “EASTERIN40”
You will get Flat 50% Off at checkout on the purchase of ₹7500 & above by using Coupon Code “EASTERIN50”