The ball is a hard leather-seamed spheroid, with a circumference of 22.9 centimetres (9.0 in). The ball has a "seam": six rows of stitches attaching the leather shell of the ball to the string and cork interior. The seam on a new ball is prominent and helps the bowler propel it in a less predictable manner. During matches, the quality of the ball deteriorates to a point where it is no longer usable; during the course of this deterioration, its behaviour in flight will change and can influence the outcome of the match. Players will, therefore, attempt to modify the ball's behaviour by modifying its physical properties. Polishing the ball and wetting it with sweat or saliva is legal, even when the polishing is deliberately done on one side only to increase the ball's swing through the air, but the acts of rubbing other substances into the ball, scratching the surface or picking at the seam are illegal ball tampering.
The Nawab of Pataudi, Mansoor Ali Khan Pataudi, was the team's captain for 36 Test matches from 1961–62 to 1969–70, returning for another four matches against West Indies in 1974–75. In the early years of his captaincy tenure, the team was whitewashed in the West Indies, England and Australia. However, in 1967–68, Pataudi led India on its maiden New Zealand tour, which ended in India winning the Test series 3–1. In 1970–71, Ajit Wadekar took over the captaincy from Pataudi. Under Wadekar's captaincy, India registered its first Test series win in the West Indies and England. India played its first ODI in 1974, also under his captaincy. India won its first ODI under the captaincy of Srinivasaraghavan Venkataraghavan in the 1975 Cricket World Cup, against East Africa. Between 1975–76 and 1978–79, Bishen Singh Bedi captained the team in 22 Tests and 4 ODIs, winning 6 Tests and one ODI.
The inter-war years were dominated by Australia's Don Bradman, statistically the greatest Test batsman of all time. Test cricket continued to expand during the 20th century with the addition of the West Indies (1928), New Zealand (1930) and India (1932) before the Second World War and then Pakistan (1952), Sri Lanka (1982), Zimbabwe (1992), Bangladesh (2000), Ireland and Afghanistan (both 2018) in the post-war period. South Africa was banned from international cricket from 1970 to 1992 as part of the apartheid boycott.
Cricket entered a new era in 1963 when English counties introduced the limited overs variant. As it was sure to produce a result, limited overs cricket was lucrative and the number of matches increased. The first Limited Overs International was played in 1971 and the governing International Cricket Council (ICC), seeing its potential, staged the first limited overs Cricket World Cup in 1975. In the 21st century, a new limited overs form, Twenty20, made an immediate impact. On 22 June 2017, Afghanistan and Ireland became the 11th and 12th ICC full members, enabling them to play Test cricket.
After winning the Test series against England in August 2007, Dravid stepped down as the captain of the team, following which Dhoni was made the captain of the Twenty20 and ODI team. In September 2007, India won the first-ever Twenty20 World Cup held in South Africa, beating Pakistan by 5 runs in the final. In 2007–08, they toured Australia where India lost the highly controversial home Test series 2–1 but managed to win the CB series the following month with a whitewash final of Australia.
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.