GHAZIABAD: Security personnel stand guard next to police barricades along a blocked highway as farmers continue their protest against the Indian government’s agricultural reforms.—AFP NEW DELHI: Indian authorities heavily increased security at three main protest sites outside New Delhi’s border on Tuesday, adding iron spikes, steel barricades and hundreds of riot police in an attempt to stop tens of thousands of demonstrating farmers from entering the capital. In Ghazipur, one of the protest sites, iron nails were embedded along the main highway. Cemented barricades were wrapped with coils of barbed wires as government forces guarded what looked like a security fortress.