 A Shia Jama Masjid in Sector 50 and St. Gregorios Indian Orthodox Church in Sector 51, Mar Thoma Church in Sector 50 and St. Mary's Catholic Church in Sector 34 are also well known.The city's infrastructure is looked after by the NOIDA Authority, a statutory authority set-up under "Uttar Pradesh Industrial Area Development Act, 1976".Authority's head is its Chairman, who is an IAS officer, the authority's daily matters, however, are looked after by its CEO, who is also an IAS officer.