East Bengal Born in Saikul,
Manipur, Doungel started his career in the youth team of
JCT before joining
East Bengal of the
I-League in 2011. During his first season with the club Doungel played only a few times before making his international cup debut for East Bengal in the
AFC Cup on 9 May 2012 against
Kazma. He started that match and played 72 minutes before being substituted off as East Bengal lost 2–1.
Pailan Arrows (loan) On 11 January 2013, during the
2012–13 season, Doungel was loaned out to fellow
I-League side
Pailan Arrows for the rest of the season. He made his debut for the side on 12 January against
Air India. He played 88 minutes before being substituted off as Pailan Arrows drew the match 1–1. He scored his first professional goal of his career for the club on 24 March 2013 against
Mohun Bagan. He found the net in the 49th minute but could not help his side from losing 3–2 that match. Doungel then scored his second and final goal for Pailan Arrows on 20 April 2013 against
Salgaocar. His 36th-minute strike being the lone goal for Arrows as the fell on the day 2–1.
Return to East Bengal For the
2013–14 season Doungel returned to
East Bengal. He made his return debut for the club on 1 November 2013 against
Salgaocar at the
Kalyani Stadium. Doungel came on as a 71st-minute substitute for
Chidi Edeh and then scored a 77th-minute goal for East Bengal, however, the club still went on to lose 3–2. He then scored his second goal of the season on 23 March 2014 against
Rangdajied United after coming on as a 53rd-minute substitute for
James Moga. East Bengal went on to win that match 3–1. Doungel then finished his East Bengal career with two goals in two games. The first goal came against
Pune on 19 April. His 75th-minute strike being the winner in a 2–1 victory for East Bengal. His second goal then came against
United Sports Club on 28 April, being the last goal scored in a 3–0 rout.
Shillong Lajong On 5 May 2014, following the conclusion of the
2013–14 season, it was announced that Doungel had signed for
Shillong Lajong who also play in the
I-League.
Bengaluru FC On 3 June 2015,
Bengaluru announced the signing of Len from
Shillong Lajong on a two-year deal.
Delhi Dynamos (loan) In July 2015 Doungel was chosen to play for
Delhi Dynamos in the
2015 Indian Super League.
NorthEast United On 23 July 2017, Doungel has been drafted to
Northeast United FC for
ISL season 4. On 6 January, Len scored his first goal in ISL-4 against
FC Goa. He scored a hat-trick against
Chennaiyin on 19 January making him the first Indian player to score a hat-trick in ISL-4 and also it was the first hat-trick of NorthEast United.
Kerala Blasters In June 2018, Doungel signed a three-year contract with
Kerala Blasters. He was then called to join the team camp of the
India national team for the
2018 Intercontinental Cup.
FC Goa On 20 May 2019, Doungel signed a two-year contract with
Goa on a free transfer from Kerala Blasters. He remained with the Gaurs till the summer of 2021.
Jamshedpur FC On 5 August 2021, it was announced that Doungel had signed a 3-year contract with
Jamshedpur FC. ==Career statistics==