Question: What is the official name of the league, due to sponsorship reasons, in which Souvik Chakrabarti plays?

Context paragraphs:
Football Superleague of Kosovo: The Football Superleague of Kosovo (Albanian: "Superliga e Futbollit të Kosovës" ), also known as the Vala Superleague of Kosovo for sponsorship reasons with Vala, is the top professional association football division of the Kosovar football league system.  The division was set up in 1945 and its official name has changed a number of times.  Vala Superleague is organized by the Football Federation of Kosovo and the division currently has a 12-team format.  The clubs play each other three times during the season for a 33-match schedule.  At the end of the season, the bottom three teams in the division are relegated to the second tier, First Football League of Kosovo.

CAF Champions League: The CAF Champions League is an annual continental club football competition run by the Confederation of African Football (CAF).  The top club sides from Africa's football leagues are invited to participate in this competition, which is the premier club football competition in the continent and the equivalent to the UEFA Champions League.  Due to sponsorship reasons, the official name is Total CAF Champions League, with Total Champions League also in use.

Telekom S-League: The Telekom S-League, commonly known as just the Solomon Islands S-League or more simply the S-League for sponsorship reasons, is a semi professional league and the top division of the Solomon Islands Football Federation.  It was known as the Solomon Islands National Club Championship from 2003 till 2010, when the official name was changed.

Nemzeti Bajnokság I (men's handball): The Nemzeti Bajnokság I (English: National Championship I , commonly abbreviated NB I) is the premier men's professional handball league in Hungary, administered by the Hungarian Handball Federation.  Since 2006 the official name of the championship is "Budapest Bank Férfi Kézilabda Liga" due to sponsorship reasons.

Russian Football National League: The Russian Football National League (FNL) (Russian: Первенство Футбольной Национальной Лиги, Pervenstvo Futbol'noy Natsional'noy Ligi ; complete official name FONBET-Russian Football Championship among the club teams of FNL, Russian: ФОНБЕТ-Первенство России по футболу среди команд клубов ФНЛ for sponsorship reasons), formerly called Russian First Division (Russian: Первый дивизион ) is the second level of Russian professional football.

Basketball League Belgium Division I: The Basketball League Belgium (BLB) Division I, for sponsorship reasons, known as the EuroMillions Basketball League, is the highest tier level professional basketball league in Belgium for clubs.  Through 2014, for sponsorship reasons, the league was previously known as the Ethias League, and from 2014–2016, it was known as the Scoore!  League, for sponsorship reasons.  The league is organized by the Basketball League Belgium.

Indian Super League: The Indian Super League (ISL) is a men's professional football league in India.  For sponsorship reasons, the league is officially known as the Hero Indian Super League.  One of the top football leagues in the country, it currently shares the top spot in the Indian football league system with the I-League.  The league comprises 10 teams and will run for five months from November to March starting with the 2017–18 season.

Souvik Chakrabarti: Souvik Chakrabarti (born 12 July 1991 in Kolkata, West Bengal) is an Indian footballer who plays as a central midfielder for club Jamshedpur FC in the Indian Super League.

Malian Première Division: Malian Première Division is the top division of football in Mali.  Having been created in 1966, it is governed by the Fédération Malienne de Football.  The league has been professional since 2004.  The official name is Ligue 1 Orange Mali for sponsorship reasons.

Whaddon Road: Whaddon Road, known as the LCI Rail Stadium for sponsorship reasons, is a football stadium in Cheltenham, England.  It is the home ground of Cheltenham Town F.C. and shared with Gloucester City A.F.C..  It has a total capacity of 7,066, with a mixture of seating and terracing.  The ground's official name was the Victory Sports Ground until April 2009 when it was renamed the Abbey Business Stadium through a sponsorship deal.

Supporting paragraphs: Souvik Chakrabarti Indian Super League
Answer: Hero Indian Super League