Question: What year did the anchor store of the GVK One mall open?

Context paragraphs:
Towne West Square: Towne West Square is an enclosed shopping mall located in Wichita, Kansas, United States.  Opened in 1980, it comprises more than 100 stores in 951447 sqft of gross leasable area.  The mall's five anchor stores include Convergys, Dick's Sporting Goods, two Dillard's locations and JCPenney.  Sears (the sixth anchor store) closed in December 2014, leaving one anchor space vacant.  The original anchor stores in the mall were: Dillard's, Henry's, JC Penney, Montgomery Ward and Service Merchandise.  Sears opened in 1994 (14 years after the rest of the mall) moving a store from the open air Twin Lakes Shopping Center.  There is a drop in daycare closest to JCPenny that opened in May 2015 called the Kiddie Klubhouse.

Century Mall: Century Mall was an indoor shopping mall located on the southeast corner of Broadway (Indiana 53) and US 30 in Merrillville, Indiana.  The mall opened in 1979 with anchor stores Goldblatt's and Montgomery Ward.  Competitive and economic factors sent the mall into steady decline and national retail chains left throughout the 1990s until the mall was ultimately sold for redevelopment in 2001 then closed and largely demolished in 2002.  The mall's interior stores also suffered following Montgomery Ward's remodeling.  Montgomery Ward removed their mall entrance and told customers that no stores remained, when in reality close to a dozen stores were still open.  A strip mall development named Century Plaza now occupies the land and some of the former anchor store buildings.

Chesterfield Mall: Chesterfield Mall is a shopping center in Chesterfield, Missouri, at the intersection of Interstate 64/U.S. Routes 40-61 and Clarkson Road (Route 340).  The mall opened in 1976, built by Richard Jacobs.  Chesterfield Mall includes about 150 shops, three anchor stores (Dillard's, Macy's, and Sears), and an AMC Megaplex theater.  The mall was owned most recently by CBL & Associates Properties, which acquired the property in 2007 from the Westfield Group, who bought it from Richard E. Jacobs Group in 2002.  Anchor store Dillard's closed in September 2016 due to flooding following a water main break; the store was expected to reopen in 2017.  The mall was placed in receivership in the third quarter of 2016, pending foreclosure, with management transferred to Madison Marquette while a new owner is sought.  The foreclosure finalized in June 2017, making C-III Capital Partners the temporary owner.

Upper Valley Mall: Upper Valley Mall is a shopping mall located in Springfield, Ohio northeast of Dayton.  Built in 1971 by the Edward J. DeBartolo Corp. from Youngstown, the mall features one anchor store and offers four sit down restaurants.  The Upper Valley Mall is located on the city's west side just off US-68.  The mall was owned by Simon Property Group, an Indianapolis, Indiana-based company.  It is currently owned by Urban Retail Properties.  The Upper Valley Mall contains 267466 sqft .  of floor space, with Sears as the only independently owned anchor store.

Everett Mall: Everett Mall is a 673000 sqft indoor/outdoor shopping mall located in Everett, Washington, USA.  Planned in the late 1960s, the mall began with the construction of two anchor stores, Sears in 1969 and White Front in 1971.  The mall was originally built and opened in 1974 after the Boeing bust stalled construction in 1972.  It was further plagued upon opening with one anchor store closing before opening as well as a low tenant rate.  The mall began to rebound after The Bon Marche opened in 1977, leading to the construction of an additional wing to the mall anchored by the upscale Frederick & Nelson department store.

GVK One: GVK One is a shopping mall located in Banjara Hills, Hyderabad, India.  The 350,000 sq.ft mall was opened to public on 1 May 2009.  The mall has 70 branded stores and its anchor store Shoppers Stop spans 60,000 sq.ft in three levels.  The mall has six screen INOX multiplex housed in it.  The mall is established and promoted by GVK Power and Infrastructure limited.

Shoppers Stop: Shoppers Stop is an Indian retailing company promoted by the K Raheja Corp Group.  It began in 1991 with its first store in Andheri, Mumbai.  Shoppers Stop Ltd has been awarded "the Hall of Fame" and won "the Emerging Market Retailer of the Year Award", by the World Retail Congress at Barcelona, on 10 April 2008.  Shoppers Stop is listed on the BSE and National Stock Exchange of India.  As of 2013, Shoppers Stop had 73 stores in India.

Eastern Hills Mall: Eastern Hills Mall is a shopping mall located at the western border of the Town of Clarence in Erie County, New York, United States.  It lies on Transit Road (New York State Route 78, a 73.49-mile state highway), which in the vicinity of the mall, divides Clarence, New York from the town of Amherst, New York east of (Buffalo, New York).  The mall is north of the junction of NY-78 with NY-5, and Main Street.  The name "Eastern Hills" refers to the very low hills that contribute to a slightly higher elevation than the bordering areas along the Onondaga Escarpment.  Eastern Hills Mall is part of a long commercial strip on Transit Road.  It consists of two long wings running north and south and one short wing running east and west, which connects the north-south wings in a "double L-shaped" formation.  A major department store is at the end of each wing.  A food court is located adjacent to the end of the long south wing.  A three-screen movie theater showing mainly independent films is also located in the mall, as well as a small New York State Department of Motor Vehicles office.  Surrounding the mall is a large, but generally unkept, parking lot.  The ratio of the mall is so large, it provides the highest parking ratio of any Buffalo area mall.  Much of the parking lot space is leased to area car dealerships to store overstock vehicles due to the low volume of shoppers at the mall.  Eastern Hills Mall is currently at approximately 70% occupancy, with many vacant stores throughout the mall and popular anchor store Dave & Busters shuttering its doors in 2015 to move to the nearby Walden Galleria.  Eastern Hills is considered by many area residents to be a "dead mall" and is listed on the website Deadmalls.com.  Most major and nationally recognized retailers have left and been replaced by independently owned "mom-and-pop" type stores, selling crafts and homemade goods.  It is common for retailers to open and close within their first few months, unable to turn a profit due to the low volume of shoppers that still visit Eastern Hills Mall.

Greendale Mall: The Greendale Mall is an enclosed shopping mall located near the intersection of Interstates 290 and 190 in Worcester, Massachusetts.  The complex has traditionally had two anchor stores, located at the northern and southern entrances.  An expansion in the late-1990s added a third anchor store, near the mall's center entrance.  DSW, Best Buy, TJ Maxx, and Big Lots occupy the anchor positions.  Lechmere used to have a store in the space now partially occupied by Best Buy, but closed in 1997.  The anchor at the end of the mall was Marshalls until 2007.  It became Big Lots in 2010.

North Shore Square: North Shore Square is a 621192 sqft shopping mall in Slidell, Louisiana.  The mall is the largest mall on the Northshore of Lake Pontchartrain, fifth largest in the New Orleans area and the 11th largest in Louisiana.  The mall is home to two anchor stores, Dillard's, and At Home, as well as approximately 23 other stores.  All the anchor stores are on one level.  The mall did not flood during Hurricane Katrina and experienced no serious damage.  The mall formerly had Mervyns as an anchor store, but closed shortly after the storm when Mervyn's pulled out of the Louisiana market.  The store was eventually replaced by Burlington Coat Factory, which is now closed due to corporate downsizing.  JCPenney closed on July 31, 2017.  The mall has struggled partially due to increased internet-based sales as well as an open-air shopping center located on the opposite side of town, to which it lost some of its tenants.  Following a nationwide trend, the mall's future is uncertain as many former mall-based stores have either closed completely or downsized nationally, and enclosed shopping malls across the country are challenged by new consumer trends and shifting paradigms.

Supporting paragraphs: GVK One Shoppers Stop
Answer: 1991