Cricket is a bat-and-ball game played on a cricket field (see image, right) between two teams of eleven players each. The field is usually circular or oval in shape and the edge of the playing area is marked by a boundary, which may be a fence, part of the stands, a rope, a painted line or a combination of these; the boundary must if possible be marked along its entire length.
Sunil Gavaskar took over as Test and ODI captain in 1978–79, leading India in 47 Test matches and 37 ODIs, winning 9 Tests and 14 ODIs. He was succeeded by Kapil Dev in the 1980s, who captained for 34 Test matches, including 4 victories. Kapil Dev led India to victory in 39 of his 74 ODIs in charge, including the 1983 Cricket World Cup. Kapil Dev also captained India's 2–0 Test series victory in England in 1986. Between 1987–88 and 1989–90, India had three captains in Dilip Vengsarkar, Ravi Shastri and Krishnamachari Srikkanth. Vengsarkar took over the captaincy from Kapil Dev after the 1987 Cricket World Cup. Although he started with two centuries in his first series as captain, his captaincy period was turbulent and he lost the job following a disastrous tour of the West Indies in early-1989 and a stand-off with the Indian cricket board (BCCI).
Limited overs cricket is always scheduled for completion in a single day. There are two types: List A which normally allows fifty overs per team; and Twenty20 in which the teams have twenty overs each. Both of the limited overs forms are played internationally as Limited Overs Internationals (LOI) and Twenty20 Internationals (T20I). List A was introduced in England in the 1963 season as a knockout cup contested by the first-class county clubs. In 1969, a national league competition was established. The concept was gradually introduced to the other leading cricket countries and the first limited overs international was played in 1971. In 1975, the first Cricket World Cup took place in England. Twenty20 is a new variant of limited overs itself with the purpose being to complete the match within about three hours, usually in an evening session. The first Twenty20 World Championship was held in 2007. Limited overs matches cannot be drawn, although a tie is possible and an unfinished match is a "no result".
In the approximate centre of the field is a rectangular pitch (see image, below) on which a wooden target called a wicket is sited at each end; the wickets are placed 22 yards (20 m) apart. The pitch is a flat surface 3 metres (9.8 ft) wide, with very short grass that tends to be worn away as the game progresses (cricket can also be played on artificial surfaces, notably matting). Each wicket is made of three wooden stumps topped by two bails.