The social media involvement of AAP has played a huge role in their success. Most of the politicians are active on twitter and have large number of followers. Clearly, The tech wing of AAP knows how to work.
Recently AAP's official Facebook page shared a very interesting way to advertise for them. Devoid of crores of rupees and completely relying on donations. They found a way to advertise using Wi-Fi HOTSPOTS... The video explains in plain Hindi how to spread the word.