Born in Siaha, Mizoram, Beingaichho won the Indian Football Association (West Bengal) U-19 Player of the Year on 12 November 2009 while playing for George Telegraph. After winning the award, Beingaichho signed for East Bengal F.C. of the I-League. He scored his first goal for East Bengal in the AFC Cup on 20 April 2010 against Al-Ittihad in which he scored in the 85th minute as East Bengal lost the match 2–1. He then scored his first two I-League goals on 4 May 2010 against Chirag United in which he scored in both the 40th and 67th minutes of the match to help East Bengal to a 2–1 victory.
