In the original Viagra, the active substance is Sildenafil, and its manufacturer is the well-known pharmaceutical company Pfizer in the United States of America. Unlike the original Viagra, Aurogru is produced in India, and the Aurochem concern is its producer.
Both types of tablets are different, although they have exactly the same composition and do not differ in their effectiveness. The reason for this is the lack of proper confirmation that the analogs of the famous drug can be officially considered drugs.
Despite the fact that such drugs are manufactured under the strict control of the manufacturers of the original Viagra, any substitutes for it, including Aurogra, go on sale under international unpatented names and therefore are famous for the generally affordable price.
About Aurogra 100 mg you can read here