Sardar Sewa Singh Thikriwala was a social reformer and the real hero of the Praja Mandal movement in Punjab. He was born in August 1878 in the village of Thikriwala, Patiala State, Punjab, India. His mother was Mata Har Kaur and father Deva Singh, who was an official at the court of Maharaja Rajinder Singh. He completed his education in Patiala. He was a brilliant student and fluent in many languages like Punjabi, English, Urdu and Persian. Although he was born in a rich family, Sewa Singh Thikriwala continued to be the voice of the common people and always took stand for them. Sewa Singh, a dedicated member of the Singh Sabha Reform Movement, established Gurmukhi classes in village gurdwaras, and worked religiously to popularize the Anand Karaj form of marriage among Sikhs.

During the Nankana Sahib massacre, he extended his helping hands to the people who are suffering and raised the voice against injustice. He was then arrested for wearing a black turban and wearing a kirpan and sent to jail. During that time, Baba Kharak Singh established the Praja Mandal Movement and assigned Sewa Singh the responsibility of being president of the movement.

Sewa Singh was also appointed as a State official, but he spent the majority of his time working on the Singh Sabha movement. He was against the oppressiveness and dictatorship of rulers of Patiala State which lead him fell in the trouble. The state charged him with a minor theft. Though the charge could not be proved, he was not released. He was arrested by the Patiala police and several charges were leveled against him. He refused to defend himself and was sentenced to 3 years imprisonment. He was mistreated by jail authorities when he went on hunger strike as a protest against ill-treatment. The Government did not pay proper attention to his health and he perished on 19 January 1935.

Every year on 19th January, a death anniversary function is organized in his village to commemorate the valiant endeavours and bravery of Sardar Sewa Singh.