But his army career lasted only three and a half years. He returned to his village, Chak 140 GB, to devote himself to the promotion of religious and social reform in the panth. He became a member of the Chief Khalsa Diwan and helped to establish the Khalsa Diwan Samundri. Later this and other similar societies working in that area were through his initiative knit into a bigger organization called the Khalsa Diwan Bar. For the education of children, he established two schools Khalsa Middle School in his village and Sri Guru Gobind Singh Khalsa High School at Sarhali in Amritsar district.Some more schools were opened under the auspices of the Khalsa Diwan Bar. Teja Singh started taking interest in the Akali movement.
He was one of the founders of the Sikh daily newspaper, the Akali. He organized public meetings to protest against the demolition by the government of one of the walls of Gurdwara Rikabgahj at Delhi and was one of the 100 Sikhs who had volunteered to lay down their lives in a bid to have it restored. He was nominated a member of the committee appointed to administer the Nankana Sahib Gurdwara after the tragic happenings of 1921. He was among the founder members of the Shiromani Gurdwara. Parbandhak Committee of which he later became Vice-president.
He was also Vice-president of the Punjab Congress Committee. From November 1921 to January 1922, he suffered imprisonment for his part in the agitation concerning the keys of the Golden Temple treasury, which had been taken into possession by the government. On 13 October 1923; he was arrested in connection with the Jaito morcha. He was among those Akali leaders who refused to secure their release by giving government the assurance that they would` work by the Sikh Gurdwaras Act passed on 9 July 1925. Sardar Teja Singh died in custody on 17 July 1926 following a heart attack. Among his contemporaries, he was widely esteemed for his qualities of character and dedication and for his talent for organization. The handsome Teja Singh Samundri Hall in Amritsar, which houses the offices of the Shiromani Gurdwara Parbandhak Committee, today honours his memory.
1. Dard, Hira Singh, Menari Kujh Itihasak Yada/i. Jalandhar, 1960
2. Niranjan Singh, Jivan-Yatra Master Tara Singh. Amritsar, 1968
3. Piar Singh, Teja Singh Samundn. Amritsar, 1975
4. Sahni, Ruchi Ram, Struggle for Reform in Sikh Shrines. Amritsar, n.d