Marriage, Opening In ODIs & World Cup ’99-

Weeks after his successful tour of England, Ganguly eloped with childhood sweetheart Dona Roy. The bride and groom's family were sworn enemies at that point and this news caused an uproar between them. However, both families reconciled and a formal wedding was held in February 1997. Same year, Ganguly scored his maiden ODI century by hitting 113, opposed to Sri lanka 's team total of 238. Later that year, he won four consecutive man of the match awards, in the Sahara Cup with pakistan; the second of these was won after he took five wickets for 16 runs off 10 overs, his best bowling in an ODI. After a barren run in Test cricket his form returned at the end of the year with three centuries in four Tests all against Sri Lanka two of these involved stands with Sachin Tendulkar of over 250.

During the final of the Independence Cup at Dhaka in January 1998, India successfully chased down 315 off 48 overs, and Ganguly won the Man of the Match award. In March 1998 he was part of the Indian team that defeated Australia; in Kolkata, he took three wickets having opened the bowling with his medium pace.

Ganguly was part of the Indian team that competed in the 199 Cricket World Cup in England. During the match against Srilanka at Taunton, India chose to bat. After Sadagoppan Ramesh was bowled, Ganguly scored 183 from 158 balls, and hit 17 fours and seven sixes. It became the second highest score in World Cup history and the highest by an Indian in the tournament. His partnership of 318 with Rahul Dravid is the highest overall score in a World Cup and is the second highest in all ODI cricket. In 1999–00, India lost Test series to both Australia and South Africa that involved a combined total of five Tests. Ganguly struggled scoring 224 runs at 22.40; however his ODI form was impressive, with five centuries over the season taking him to the top of the PwC One Day Ratings for batsmen. Around the same time, allegations came that Ganguly was romantically involved with South Indian actress Nagma, something he denied.

Ascension To Captaincy & Accolades-     

In 2000, after the match fixing scandal by some of the players of the team, Ganguly was named the Captain of the Indian cricket team. The decision was spurred due to Tendulkar stepping down from the position for his health, and Ganguly being the vice-captain at that time. He began well as a captain, leading India to a series win over South Africa in the five-match one day series and led the Indian team to the finals of the 2000 ICC KnockOut Trophy. He scored two centuries, including one in the final; however, NewZealand till won by four wickets. The same year, Ganguly tried his hand at County cricket career in England but was not a successful. His Lancashire teammate Andrew Flintoff thought him to be aloof and compared his attitude to that of Prince Charles. In Australia's three Test and five match ODI tour of India in early 2001, Ganguly caused controversy by arriving late for the toss on four occasions, something that agitated opposing captain Steve Waugh. In the Fourth ODI, he caused further controversy by failing to wear his playing attire to the toss, something considered unusual in cricket circles. However, India won the Test series 2–1, ending Australia's run of 16 consecutive Test match 

victories in the Second Test. The match saw India looking set for defeat after conceding a first innings lead of 274. Waugh chose to enforce the follow-on and V. V. S. Laxman (281) and Rahul Dravid (180) batted for the entire fourth day's play to set Australia a target of 384 on a dusty, spinning wicket. The Australians were unable to survive and became only the third team to lose a Test after enforcing the follow-on. In November 2001, Ganguly's wife Dona gave birth to their daughter Sana Ganguly. At the Border-Gavaskar Trophy of 2001, During the final match of the 2002 Natwest Trophy held in Lords after a stunning performance by team mates Yuvraj Singh and Mohammad Kaif, Ganguly took off his shirt in public and brandished it in the air to celebrate India's winning of the match. He was later strongly condemned for tarnishing the "gentleman's game" image of cricket and disrespecting Lords protocol. Ganguly said that he was only mimicking an act performed by the British all-rounder Andrew Flintoff during a tour of India. In 2003, India reached the World Cup Final for the first time since 1983, where they lost to the Australians. Ganguly had a successful tournament personally, scoring 465 runs at an average of 58.12, including three centuries.

By 2004, he had achieved significant success as captain and was deemed as India's most successful cricket captain by sections of the media. However, his individual performance deteriorated during his captaincy reign, especially after the World Cup, the tour of Australia in 2003 and the Pakistan series in 2004. In 2004, Australia won a Test series in India for the first time since 1969. It was speculated that Ganguly was in disagreement with the head of cricket in Nagpur over the type of pitch to be used for the Third Test. The groundsmen went against Ganguly, leaving a large amount of grass on the pitch. Some experts indicated that the reason for this was for "spite or revenge" against the Indian captain. When Australia's stand-in-captain, Adam Gilchrist, went to the toss, he noticed Rahul Dravid was waiting instead of Ganguly, leaving him to ask Dravid where Ganguly was. Dravid could not give a definitive answer, saying: "Oh, who knows?"

Following indifferent form in 2004 and poor form in 2005, he was dropped from the team in October 2005. Having been nominated and rejected in 2000, when the game suffered a tarnished reputation due to match fixing scadals, the captaincy was passed to Dravid, his former deputy. Ganguly decided against retiring and attempted to make a comeback to the team. Ganguly was awarded the Padma Shri. In 2004, one of India's highest awards. He was presented with the award on June 30, 2004, by then President of India, Dr. A. P. J. Abdul Kalam.