|Date of birth||3 November 1992|
|Place of birth||Hisar, Haryana, India|
|Height||1.80 m (5 ft 11 in)|
|* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Pailan Arrows and Air India
Singh started his professional career in 2010 with Pailan Arrows (then known as Indian Arrows) of the I-League. While with Arrows Singh scored only one goal which came against Air India FC on 13 March 2011 in which Singh scored the equaliser for Arrows in a match that Arrows eventually won 5–2. Singh then left Pailan Arrows after one season and signed for Air India for the 2011–12 I-League season. Singh scored his first two goals for Air India on 1 November 2011 when he scored a brace against Salgaocar F.C. in the I-League in a match that Air India won 3–1. Singh then scored again in his next match for Air India against Chirag United Club Kerala on 6 November 2011 when he scored from a penalty in the 45th minute as Air India won 2–1. Singh continued his good form for Air India by scoring another brace against Hindustan Aeronautics Limited S.C. on 20 November 2011 which helped Air India clinch a 4–2 victory. Singh then ended 2011 by scoring another brace against eventual champions Dempo S.C. on 18 December 2011 in which Air India won 2–0 and in which was surprising after Air India lost 14–0 to Dempo the season before. At the end of 2011 Singh had scored nine goals. Singh did not score again for Air India till 26 March 2012 in which he scored a brace against Mohun Bagan. After the season ended Singh was named the Football Players Association of India Young Player of the Season for the 2012–13 season.
After the season ended Manandeep signed for East Bengal. He made his first-team debut for the club on 21 September 2012 against Sporting Clube de Goa in East Bengal's first match of the 2012 Indian Federation Cup by coming on as a 59th minute substitute for Baljit Sahni. Then two days later Singh scored his first goal for East Bengal against ONGC F.C. after converting an 80th minute penalty which won East Bengal the game 2–1. Singh then scored a brace for East Bengal on 25 September 2012 against Kalighat MS to send East Bengal to the semi-finals of the Federation Cup. East Bengal won the match 4–3. Singh then scored for East Bengal in the Final of the 2012 Federation Cup on 30 September 2012 scoring in the 100th minute to give East Bengal a 2–1; eventually East Bengal won the game and the tournament 3–2.
Singh scored his first goal for East Bengal in league competition on 17 November 2012 against Churchill Brothers at the Fatorda Stadium in Margao, Goa in which he scored the second goal for East Bengal in a 3–0 victory which also sent East Bengal into first place in the I-League at that point. Singh then scored his second goal for the club in league play on 24 November 2012 against ONGC F.C. at the Salt Lake Stadium in which East Bengal won 5–0 convincingly.
On 20 November 2013, despite earlier rejecting ISL signed players, Rangdajied United F.C. of the I-League agreed to sign Manandeep on as well as Subrata Pal, Sandesh Jhingan, Gouramangi Singh, and Tomba Singh.
He made his debut in I-League on 22 November 2013 against Shillong Lajong F.C. at the Nehru Stadium as he played the whole match and earned a yellow card in the 84th minute as Rangdajied drew the match 1–1.
Singh has played for India at the U16, U19, and U23 youth levels. He made his debut for the under-16 side on 27 October 2007 against Sri Lanka under-16s during the 2008 AFC U-16 qualifiers in which he also scored in the 46th minute as India U16s went on to win 6–0. He then scored his second goal for the u16 side on 1 November 2007 against Lebanon in the 47th minute as India secured a 3–0. Singh then scored his third goal for the under-16s on 8 October 2008 during the 2008 AFC U-16 Championship against Indonesia; India won 1–0. Singh then made his debut for the u19 team on 5 November 2009 against Iraq during the 2010 AFC U-19 Championship qualifiers; India U19 lost 5–0. He then made his under-23 debut for India on 23 June 2011 against Qatar U23 coming on as a 69th minute substitution for Chinadorai Sabeeth; India U23 drew the match 1–1 but lost 4–2 on aggregate.
Statistics accurate as of 20 March 2014 
|Club||Season||League||Federation Cup||Durand Cup||AFC||Total|
- FPAI Young Player of the Year (1): 2012
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- Srivastava, Ayush. "FPAI Awards: Syed Rahim Nabi named Indian Player of the Year while Trevor Morgan surprisingly pips Armando Colaco to Coach of the Year title". goal.com. Retrieved 15 July 2012.
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- "East Bengal 4–3 Kalighat MS: Red and Gold brigade come out on top in 7 goal thriller". Goal.com. Retrieved 9 November 2012.
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- Noronha, Anselm. "Churchill Brothers SC 0–3 East Bengal: Chidi on song as the Red and Gold continue their unbeaten run". Goal.com. Retrieved 18 November 2012.
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- "Rangdajied Bolster Their Squad With National Stars". I-League. Retrieved 27 November 2013.
- "Shillong Lajong vs. Rangdajied United 1–1". Soccerway.com. Retrieved 23 November 2013.
- "INDIA U16 6–0 Sri Lanka U16". Indian Football. Retrieved 22 September 2012.
- "INDIA U16 4–0 BHUTAN U16". Indian Football. Retrieved 22 September 2012.
- "India 1–0 Indonesia". Asian Football Confederation. Retrieved 9 November 2012.
- "Iraq U19 5–0 India U19". Asian Football Confederation. Retrieved 9 November 2012.
- "Qatar U23 1–1 India U23". Asian Football Confederation. Retrieved 9 November 2012.
- "Oman v India – Friendly: LIVE Score Updates`". The Hard Tackle. Retrieved 9 November 2012.