In 1884, his father was transferred to Rohtak and Rai came along after the completion of his studies at Lahore. In 1886, he moved to Hisar where his father was transferred, and started to practice law and became a founding member of the Bar council of Hisar along with Babu Churamani. In the same year he also founded the Hisar district branch of the Indian National Congress and reformist Arya Samaj with Babu Churamani (lawyer), three Tayal brothers (Chandu Lal Tayal, Hari Lal Tayal and Balmokand Tayal), Dr. Ramji Lal Hooda, Dr. Dhani Ram, Arya Samaj "Pandit Murari Lal", Seth Chhaju Ram Jat (founder of Jat School, Hisar) and Dev Raj Sandhir. In 1888 and again in 1889, he had the honor of being one of the four delegates from Hisar to attend the annual session of the Congress at Allahabad, along with Babu Churamani, Lala Chhabil Das and Seth Gauri Shankar. In 1892, he moved to Lahore to practice before the Lahore High Court. To shape the political policy of India to gain independence, he also practiced journalism and was a regular contributor to several newspapers including The Tribune. In 1886, he helped Mahatma Hansraj establish the nationalistic Dayananda Anglo-Vedic School, Lahore