Day in northeast India. Separatist protests in this region intensified in the 1980s; calls for boycotts and terrorist attacks by insurgent organisations such as the United Liberation Front of Assam and the National Democratic Front of Bodoland, marred celebrations. With increasing insurgency in Jammu and Kashmir from the late 1980s, separatist protesters boycotted Independence Day there with bandh (strikes), use of black flags and by flag burning. Terrorist groups such as Lashkar-e-Taiba, the Hizbul Mujahideen and the Jaish-e-Mohammed have issued threats, and have carried out attacks around Independence Day. Boycotting of the celebration has also been advocated by insurgent Maoist rebel organisations. In the anticipation of terrorist attacks, particularly from militants, security measures are intensified, especially in major cities such as Delhi and Mumbai and in troubled states such as Jammu and Kashmir. The airspace around the Red Fort is declared a no-fly zone to prevent aerial attacks and additional police forces are deployed in other cities. Since the assassination of Indira Gandhi, prime ministers would give their speeches from behind a bullet-proof glass panel. Since 2014, when Narendra Modi was elected as prime minister, he did away with this tradition. So additional intense measures were taken to ensure security. In popular culture On Independence Day and Republic Day, patriotic songs in regional languages are broadcast on television and radio channels. They are also played alongside flag hoisting ceremonies. Patriotic films are broadcast. Over the decades, according to The Times of India, the number of such films broadcast has decreased as channels report that audiences are oversaturated with patriotic films. The population belonging to Generation Y often combine nationalism with popular culture during the celebrations. This mixture is exemplified by outfits and savouries dyed with the tricolour and garments that represent India's various cultural traditions. Shops often offer Independence Day sales promotions. Some news reports have decried the commercialism. Indian Postal Service publishes commemorative stamps depicting independence movement leaders, nationalistic themes and defence-related themes on 15 August. Independence and partition inspired literary and other artistic creations. Such creations mostly describe the human cost of partition, limiting the holiday to a small part of their narrative. Salman Rushdie's novel Midnight's Children (1980), which won the Booker Prize and the Booker of Bookers, wove its narrative around children born at midnight of 14–15 August 1947 with magical abilities. Freedom at Midnight (1975) is a non-fiction work by Larry Collins and Dominique Lapierre