Rajagiriya

Kolonnawa (Sinhala: කොලොන්නාව, Tamil: கொழுன்னை) is a town located on the eastern boundary of Colombo District, Western Province of Sri Lanka. It is bounded by Kelani River to the north, Kotikawatta-Mulleriyawa Pradeshiya Sabha to the east, Kotte Municipal Council to the south and Colombo Municipal Council to the west.

The Election Commission of Sri Lanka is the constitutional authority responsible for administering and overseeing all elections in Sri Lanka, including the Presidential, Parliamentary, Provincial and Local Authority elections. Sri Lanka has had universal adult suffrage since 1931, becoming the first Crown colony to enfranchise all adult citizens, 3 years after the United Kingdom itself; the country is the oldest democracy in Asia.

The Institute of Chemistry Ceylon is the successor to the Chemical Society of Ceylon (founded 1941) and was established in the year 1971 for the general advancement of the science and practice of chemistry. It is a not-for-profit organization, learned society catering to the Chemical Sciences as well as a professional, qualifying and examination body looking after and responsible for the maintenance and enhancement of the profession of Chemistry in Sri Lanka. It is the oldest such body in any branch of the basic sciences in Sri Lanka. The Golden Jubilee of the Institute was held in 1991 & the Diamond Jubilee in 2001. The Institute of Chemistry Ceylon was incorporated by Act of Parliament No. 15 of 1972.

The Rajagiriya Flyover (also referred to as the Rajagiriya Bridge) is a flyover built over Sri Jayawardenepura Mawatha in Rajagiriya, Sri Lanka. It is the longest flyover in the country. Initial designing and construction was conducted by Access Engineering on 6 June 2016, with the flyover officially opening to the public on 8 January 2018 (8 January 2018) during an inaugural ceremony with the presence of the President of Sri Lanka Maithripala Sirisena.The flyover cost a total of Rs.4.7 billion and measures 533 m (1,749 ft) long, 21.4 m (70 ft) wide, and consists of a total of four lanes over two spans.

The siege of Kotte was an offensive which took place during the Sinhalese–Portuguese War between 1557 and 1558. A 50,000-strong Sitawaka army led by King Mayadunne besieged Sri Jayawardenapura Kotte, the capital of Kotte Kingdom, for 12 months against a combined force of Portuguese and Lascarins led by Captain-major Dom Afonso Pereira de Lacerda. After receiving reinforcements from Mannar, Portuguese made a sally and succeeded in forcing the besiegers to withdraw. This siege marked the beginning of a series of battles between Portuguese and Sitawaka forces, and ultimately ended as Portuguese abandoned Sri Jayawardenapura Kotte in 1565.

Sri Jayewardenepura Kotte, commonly known as Kotte (pronounced [ˈkoːʈeː]), is the legislative capital of Sri Lanka. Sri Jayawardenepura Kotte is located adjacent to the urban area of Sri Lanka's de facto economic, executive, and judicial capital, Colombo. The Sri Jayawardenepura Kotte Municipal Council area is bounded in: the North by Kolonnawa Urban Council area, the North-East by the Kotikawatta–Mulleriyawa Pradeshiya Sabha area, the East by the Kaduwela Municipal Council area, the South-East by the Maharagama Urban Council area, the South-West by the Dehiwala-Mount Lavinia Municipal Council and the West by the Colombo Municipal Council area, which is the commercial capital of Sri Lanka.

Pakiasothy Saravanamuttu Stadium (Tamil: பாக்கியசோதி சரவணமுத்து மைதானம், Sinhala: පාකියසොති සර්වනමූත්තු ක්‍රීඩාංගනය) Colombo Oval or P. Sara or simply PSS is a multi-purpose stadium in Colombo, Sri Lanka. It is currently used mostly for cricket matches. The stadium holds 15,000 and hosted its first Test match in 1982. It is named after Paikiasothy Saravanamuttu, a former civil servant and first President of the Board of Control for Cricket. The venue is the home ground of the Tamil Union Cricket and Athletic Club. The P.Sara Oval hosts one Test match per year in Sri Lanka's summer Test calendar, but lost out to Pallekele International Cricket Stadium in 2011 to host Sri Lanka v Australia Tests.

Welikada is a suburb in Colombo, Sri Lanka. It is the location of the Welikada Maximum Security Prison.

Western Hospital (Western Infirmary) is a private hospital located in Colombo 8, Sri Lanka that specializes in renal disease care, dialysis and transplantation. Initially opened to provide kidney care services to Sri Lankan patients, Western Hospital has now diversified to providing general health care services, and is one of the many private hospitals in Colombo, Sri Lanka. As of December 2022, the hospital is currently accused of involvement in duping organ donors into donating their kidneys. The hospital management has denied involvement in any such selling/buying of organs, which might or might not have occurred between donors and receivers.

The Japanese School in Colombo (コロンボ日本人学校, Koronbo Nihonjin Gakkō) is a Japanese international school in Colombo, Sri Lanka. It was established on 2 September 1966 (Shōwa 41). It was previously located elsewhere in Colombo.

Altitude, formerly known as 96 Iconic Tower, is a proposed skyscraper dedicated to the Sri Lankan Victory in the 1996 Cricket World Cup. The project is a joint venture between Wills Realtors (Private) Limited and the Shreepati's Edifice (Private) Limited incorporated in Sri Lanka, a subsidiary company of Shreepati Build Infra Investment Limited of India. The BOI agreement was signed by BOI Chairman Upul Jayasuriya on behalf of the Board of Investment of Sri Lanka and Directors Rakesh Chandra Pandey and Rajan Sirivastav signed on behalf of the Shreepati Group.

The President's College is a boys' national school in Sri Jayawardenapura Kotte, Sri Lanka. Founded on 4 February 1978, its inauguration was the first official act carried out by President J. R. Jayewardene.