Born in the Phek district in Nagaland, Thopi started playing football at the village and school level.
[1] In 2012, Thopi played for Life Sports in local tournaments and the Nagaland Premier League.
[2] On 25 February 2016, it was announced that Thopi would move to newly promoted I-League side Aizawl on loan from Rangdajied United for the remainder of the 2015–16 season.
[3] Thopi made his professional debut in the Indian first division three days later on 28 February against Bengaluru FC.
[5] After the Shillong Premier League season, Thopi returned to his native Nagaland and played for various clubs including Naga, Barak, Khriekesa, and Kohima Eagles.