The former Simla Youngs FC fledgling played in the I-League second division for two years before signing for then newly promoted I-League side United Sikkim. He made 24 appearances for the Sikkim based team becoming a lynchpin in defense. Post their relegation, Lugun joined another one of the I-League’s promoted teams, Rangdajied United. He made 18 appearances in the I-League 2013/14 season for the Blues from Shillong, helping his team survive relegation.
The 21 year-old has also played for the Delhi Dynamos in the inaugural Indian Super League (ISL), making his solitary appearance in the 4-1 win over Mumbai City FC.
Lugun has helped Delhi’s junior team win the Dr. BC Roy Trophy held in Kolkata in 2010 as a seventeen year old skipper and the Red Lizards' Head of Operations, Chirag Tanna, believes they have snared quite a talent. “We have been tracking Munmun’s progress for the last couple of years and I am glad we have finally signed him. I would like wish him the best of luck for the season ahead,” he revealed.
Pune FC’s coach Karim Bencherifa was ecstatic with the signing of Lugun too, elucidating, “I was following Munmun closely for last few seasons; he is young and energetic side back. I hope that he will be a valuable addition for the Pune FC squad this season.”
Finally, Munmun expressed his happiness to sign for Pune FC, “I am very happy to have signed for Pune FC. I will play with my heart for the club and will give my best every time I step on to the field.”