The ATP Tour is a worldwide top-tier tennis tour for men organized by the Association of Tennis Professionals. The second-tier tour is the ATP Challenger Tour and the third-tier is ITF Men's World Tennis Tour. The equivalent women's organisation is the WTA Tour.
The ATP Challenger Tour, known until the end of 2008 as the ATP Challenger Series, is a series of international men's professional tennis tournaments. The Challenger Tour events are the second-highest tier of tennis competition, behind the ATP Tour. The ITF World Tennis Tour tournaments are on the entry-level of international professional tennis competition. The ATP Challenger Tour is administered by the Association of Tennis Professionals. Players who succeed on the ATP Challenger Tour earn sufficient ranking points to become eligible for main draw or qualifying draw entry at ATP Tour tournaments. Players on the Challenger Tour are usually young players looking to advance their careers, those who fail to qualify for ATP events, or former ATP players looking to get back into the big tour.
Somdev Kishore Devvarman is a former professional Indian tennis player. He hit the headlines for being the only collegiate player to have made three consecutive finals at the NCAA, winning back-to-back finals in his junior and senior years at the University of Virginia. Only three other players have matched that record since 1950. His 44–1 win–loss record in 2008 at the NCAA Men's Tennis Championship is unprecedented.
Harsh Mankad is a former world ranked ATP Professional tennis player from India. He played Davis Cup for India between 2001–2010 and was the No. 1 singles player on the team for several of those years.
The 2001 Touchtel ATP World Doubles Challenge Cup was a tennis tournament played on outdoor hard courts. It was the 28th edition of the year-end doubles championships and was part of the 2001 ATP Tour. The tournament was held at the KSLTA Tennis Centre in Bangalore in India from January 28 through February 3, 2002.
The ATP Challenger Tour was the secondary professional tennis circuit organized by the Association of Tennis Professionals (ATP). The 2011 ATP Challenger Tour calendar comprised 15 top tier Tretorn SERIE+ tournaments, and approximately 150 regular series tournaments, with prize money ranging from $35,000 up to $150,000.
Purav Raja is an Indian tennis player. He specializes in doubles and competes on the ATP World Tour. He has 2 ATP world tour level titles in men's doubles. He represents India in the Davis Cup.
James Duckworth is an Australian professional tennis player. He has a career-high Association of Tennis Professionals (ATP) singles ranking of World No. 47 achieved on 8 November 2021 and No. 185 in doubles achieved on 10 February 2020. As a junior, Duckworth enjoyed a successful career which included winning three titles and reaching the semi-finals of the 2010 French Open. Duckworth represented Australia in tennis at the 2020 Tokyo Olympics and the 2022 ATP Cup.
Divij Sharan is an Indian professional tennis player. He specialises in doubles and competes on the ATP World Tour. He has won 5 ATP World Tour titles in men's doubles and represents India in the Davis Cup. He won a gold medal in the men's doubles at the 2018 Asian Games.
Fazaluddin Syed is a tennis coach and former professional tennis player from India. He has competed on the ATP tennis tour, achieving a Top 400 ranking in singles and Top 200 ranking in doubles. Fazal has represented India in Davis Cup between 1998 and 2001.
Ramkumar Ramanathan is a professional Indian tennis player. He is the first Indian player to reach an ATP world tour singles final since Somdev Devvarman. He achieved his highest singles ranking of 111 on 30 July 2018, and represents India in the Davis Cup.
The 2014 State Bank of India ATP Challenger Tour was a professional tennis tournament played on outdoor hard courts. It is the first edition of the tournament for the men. It was part of the 2014 ATP Challenger Tour. It took place in Kolkata, India, from 10–15 February 2014.
The Indore Open ATP Challenger was a tennis tournament held in Indore, India. The event was part of the ATP Challenger Tour and was played on hard courts. It was only played in 2014.
The 2015 Emami Kolkata Open ATP Challenger Tour was a professional tennis tournament played on hard courts. It was the 2nd edition of tournament which was part of the 2015 ATP Challenger Tour. It took place in Kolkata, India between 23 and 28 February 2015.
The 2017 ATP World Tour was the global elite men's professional tennis circuit organized by the Association of Tennis Professionals (ATP) for the 2017 tennis season. The 2017 ATP World Tour calendar comprised the Grand Slam tournaments, the ATP World Tour Masters 1000, the ATP Finals, the ATP World Tour 500 series, the ATP World Tour 250 series and the Davis Cup. Also included in the 2017 calendar are the Hopman Cup and the Next Gen ATP Finals, which do not distribute ranking points.
Prajnesh Gunneswaran is an Indian tennis player. He has won 2 ATP Challenger and 8 ITF titles in singles and 1 ITF title in doubles. He is currently the highest-ranked Indian singles player and represents India at the Davis Cup. At the 2018 Asian Games in Jakarta, he won the bronze medal in the men's singles event.
The Bengaluru Open is a professional tennis tournament played on hard courts. It is currently part of the Association of Tennis Professionals (ATP) Challenger Tour. It is held annually in Bangalore, India since 2015.
The 2021 ATP Tour was the global elite men's professional tennis circuit organised by the Association of Tennis Professionals (ATP) for the 2021 tennis season. The 2021 ATP Tour calendar comprised the Grand Slam tournaments, the ATP Finals, the ATP Tour Masters 1000, the ATP Cup, the ATP Tour 500 series and the ATP Tour 250 series. Also included in the 2021 calendar were the Davis Cup, the Summer Olympics in Tokyo, Next Gen ATP Finals, Laver Cup, none of which distributed ranking points.
The 2019 KPIT MSLTA Challenger was a professional tennis tournament played on hard courts. It was the sixth edition of the tournament which was part of the 2019 ATP Challenger Tour. It took place in Pune, India from 11 to 17 November 2019.
The 2021 International Tennis Federation (ITF) Men's World Tennis Tour is an entry level tour for Men's professional tennis. It is organized by the International Tennis Federation and is a tier below the ATP Challenger Tour. The Men's ITF World Tennis Tour includes tournaments with prize money ranging from $15,000 to $25,000. The results of ITF tournaments are incorporated into the ATP Ranking, which enables professionals to progress to the ATP Challenger Tour and ATP Tour, and ultimately the Grand Slams.
2015 Emami Kolkata Open ATP Challenger Tour 
