This is the best site for engineers.many courses are being offered in less span.in each and every district there are examination centres.all online classes are dealt with the iit professors with respective to the courses we choose.all are online courses and explanition is very clear.every weekend we will have an exam abut the weekly classes we heard .and in the final rxam we have to pay rs.1000 for exam fee and if u pass the exam we will get a cash back of 500 rs for selected students.the certificates issued by them are very precious and useful for bright future