Virat Kohli:

Virat Kohli started playing cricket at a very young age and was initially coached by his father, Prem Kohli. He played his first match for Delhi in the Under-15 category in 2002, scoring 172 runs against Himachal Pradesh. He continued to play for Delhi at various age levels and eventually made his way to the senior team.

In 2006, Kohli made his debut for Delhi in the Ranji Trophy, India's premier domestic cricket tournament. He was only 18 years old at the time and had a modest debut season, scoring 246 runs in five matches. However, he quickly established himself as a promising young talent and was named the captain of the Delhi team for the 2010-11 season.

Kohli's breakthrough season came in 2008, when he led the Indian team to victory in the Under-19 World Cup. He was the team's leading run-scorer in the tournament, with 235 runs in six matches, including a century in the final against South Africa. His performances in the tournament earned him a spot in the Royal Challengers Bangalore team in the Indian Premier League (IPL).

Kohli made his international debut for India in August 2008, in an ODI against Sri Lanka. He had a forgettable debut, scoring just 12 runs before being dismissed. However, he soon bounced back with a half-century in his second match, against Zimbabwe.

Kohli's first big breakthrough in international cricket came in 2009, when he was named the Player of the Tournament in the Emerging Players Tournament in Australia. He scored 398 runs in seven matches, including two centuries, and helped India win the tournament.

Kohli's Test debut came in June 2011, against the West Indies. He scored just 4 runs in his first innings, but made up for it in the second innings with a composed 15 not out that helped India secure a draw.

Since then, Kohli has gone from strength to strength in all formats of the game. He has become one of the most prolific run-scorers in world cricket and has broken numerous records along the way. He has also captained the Indian team in all formats of the game and has been widely praised for his leadership skills.

In conclusion, Virat Kohli's start in cricket was promising from a young age, and he quickly established himself as a top talent in Indian domestic cricket. He then went on to make his mark in international cricket, with his breakthrough performance coming in the 2008 Under-19 World Cup. From there, he has gone on to become one of the greatest cricketers of all time, with an impressive record across all formats of the game.