Heritage Site. The seven monument zones were included in the World Heritage List in 1979 as one integrated site. The monument zones are declared as protected and preserved according to the Monuments Preservation Act of 1956. The Square was heavily damaged on 25 April 2015 by an earthquake. Lalitpur was planned in Vihars and Bahils. Out of 295 Vihars and Bahils of the valley 56% of them are in Patan. The water conduits, stone spouts, jaladroni (water tanks), artistic gate ways, Hindu temples and Buddhist Vihars adorn the city. Demographics At the time of the 2011 Nepal census, Lalitpur Metropolitan City had a population of 292,848. Of these, 45.0% spoke Nepali, 35.2% Newar, 6.2% Tamang, 3.4% Maithili, 1.7% Magar, 1.5% Bhojpuri, 1.3% Rai, 0.9% Gurung, 0.9% Tharu and 3.9% other languages as their first language. In terms of ethnicity/caste, 39.6% were Newar, 15.9% Chhetri, 11.9% Hill Brahmin, 8.3% Tamang, 5.4% Magar, 3.5% Rai, 1.8% Gurung, 1.5% Tharu, 1.3% Limbu and 10.8% others. In terms of religion, 72.3% were Hindu, 19.2% Buddhist, 5.7% Christian, 1.7% Kirati, 0.8% Muslim, 0.1% Prakriti and 0.2% others. Economy A substantial portion of the population is engaged in trades, notably in traditional handicrafts and small-scale cottage industries, and some residents work in agriculture. Lalitpur has produced the highest number of renowned artists and finest craftsmen ever recorded in the history of Nepali art. Lalitpur has maintained a culture of craftwork even in the face of rapid urbanization and many social and political upheavals. The city is less urbanized than Kathmandu, north of the Bagmati river, but is home to many workshops, stores, restaurants, hotels, schools, embassies and other important sectors of the Kathmandu Valley economy. Buddha Air has its headquarters in Jawalakhel, near Patan. Education Postsecondary education Lalitpur is home to Pulchowk Engineering Campus, one of the oldest and most reputed colleges affiliated with the Institute of Engineering, Tribhuvan University. Patan Academy of Health Sciences is the only medical university in the city with Patan Hospital as its primary teaching hospital, and there is another medical school - KIST Medical College in Lalitpur. Other institutions of higher learning in Patan include Kathmandu University School of Management (KU SOM) and Patan Multiple Campus. Pinnacle College, one of the oldest private college of Lalitpur. Primary and secondary education The city is served by a number of private and public institutions providing education from primary until secondary level. Among