sir I purchased yours vg civil engineering course for one year validity.
in this course, I found that it is the best course for a civil engineering student. Your way of presentation and teaching skills are superb. Unfortunately i purchased it for just one year only.
I would have complete this course within 9 months but due to some family problems (in health point of view), i didn’t complete this entire course. presently now i want to upgrade my course validity from one year validity to lifetime validity.
it is helpful to lot of students who are really poor in terms of money.