Mohun Bagan A graduate of the
Tata Football Academy, Paul started his senior career with
Mohun Bagan in 2004. During the 2004
Federation Cup final against
Dempo on 5 December 2004,
Dempo forward
Cristiano Júnior lost his life after he and Paul collided. Following the incident, lack of facilities and medical professionals during the game was highlighted, leading to significant changes in the
I-League.
East Bengal Subrata was signed by local rivals
East Bengal in 2007. He was an important figure for his team during the time he spend for the Kolkata-based club and was adjudged the
I-League's best goalkeeper in 2007 for his outstanding shot-stopping abilities, an example of which was in
East Bengal's
Federation Cup winning campaign of 2007, resulting in his team qualifying for the
AFC Cup 2008. Subrata appeared 31 times in the league for East Bengal and was the first choice 'keeper for the Kolkata-based team.
Pune On 2 June 2009, Subrata joined
Pune FC. In the middle of the
I-League 2009-10 season, Subrata had a trial stint with Canadian side
Vancouver Whitecaps in the summer of 2010. Subrata expressed his desire to play abroad in the professional leagues of North America, Europe and Asia. He later said that "There was no offer coming from any club agent of any country during the Asian Cup. But I am looking for any offer to play abroad. Europe is the best place to play. But I am game to go to countries like South Korea, Japan, Australia and even the West Asian countries like Qatar, Saudi Arabia."
Prayag United Paul signed for
Prayag United of the
I-League on 9 May 2012. He made his debut for the club on 7 October 2012 against
Air India at the
Salt Lake Stadium in
Kolkata, a match Prayag won 5–1. Paul started off well in the
2011-12 I-League, impressing the new coach, however his form would soon wear thin. On 29 December 2012, Prayag United lost to I-League struggles
Sporting Goa. The next seven matches from the aforementioned defeat, his team lost 5 and drew once and this was enough for his coach to replace Subrata with
Sangram Mukherjee in the remaining league matches of the season.
Rangdajied United Subrata signed a contract with
Indian Super League to play in the new league which was to start in 2014. However, due to signing-up for the ISL, the
I-League clubs refused to sign Subrata as they were all opposed to the Indian Super League, He made his debut in the
I-League on 22 November 2013 against
Shillong Lajong at the
Jawaharlal Nehru Stadium, Shillong in which he played the whole match as Rangdajied drew 1–1.
FC Vestsjaelland On 9 January 2014, it was confirmed that Paul had signed for
FC Vestsjælland of the
Danish Superliga, thus becoming the fourth Indian footballer to play professionally abroad, the second to join a top-tier European side, and the first Indian goalkeeper to play abroad. Despite signing on as member of the squad, he did not make any appearance for the first team and only appeared with the reserve squad.
Mumbai City FC Subrata was drafted in by
ISL club
Mumbai City FC during the 2014 edition of the league and was the first choice 'keeper for his team until 2015, appearing 26 times in the league format. Subrata's performance was notable but not enough to help his team into the semi-finals.
DSK Shivajians After spending the
2016 ISL season with
NorthEast United, Paul was loaned to
I-League side
DSK Shivajians on 15 December 2016.
Jamshedpur On 23 July 2017, Pal was selected in the second round of the
2017–18 ISL Players Draft by
Jamshedpur for the
2017–18 Indian Super League. He made his debut for the club in their first ever match on 18 November 2017 against Paul's former club,
NorthEast United. Pal started the match and kept the clean sheet as Jamshedpur drew the match 0–0. After the season concluded, Pal was awarded the
Indian Super League Golden Glove Award. A month later it was announced that Pal had been retained by the club for the 2018–19 season.
Later career and retirement After leaving Jamshedpur in 2019, Paul joined
Hyderabad FC in 2020. He played six matches for Hyderabad with two clean sheets before being loaned out to
East Bengal. He was then signed by Mohun Bagan in January 2022 on a loan deal for the remainder of their season. After not playing for more than a year, Pal announced retirement from professional football on 8 December 2023 at the age of 36. ==International career==