As reflected in his political leanings to the Hindu Mahasabha , Raja Indrajit was a staunch follower of Sanatana Dharma. He traveled all across India on pilgrimages from the four Dhams, Puskhar, Prayagraj, Kashi, Kamrup Kamakhya, Puri upto Rameshwaram and subscribed liberally to religious institutions like the Gorakhnath Temple trust, Gita Press, and many other socio-religious organisations.
He was even a follower of Baba Kinnaram  and believed in the advaita sect  while regularly arranging religious discourses at Tamkuhi for his spiritual enlightenment along with the public.
He followed ekadashi  & navratari’s  fastings while offering sacrifices to Goddess Shakti. As a religious duty, he offered alms to the public and firmly believed in Cow protection. This belief led to the establishment of Gaushalas  at different locations in Gorakhpur district, Vrindaban/Mathura, Ayodhya and in a few places in Bihar too.
Being a scholar of Sanskrit, he got a Sanskrit Pathshala built in Tamkuhi  and offered free education to students learning Sanatan Dharma. Being an orthodox follower of Sanatana Dharma, Raja Indrajit made arrangements for followers of other religions. Alongside, he got a mosque at Tamkuhi enlarged and made permanent arrangements for the makhtab .
Official greeting card of Raj Tamkuhi printed for Dussehra in 1942 by Raja Indrajit Sahi.
The All India Hindu Mahasabha
A saint from the aghori sect of advaitism with an ashram near Varanasi.
A vedantic school of thought started by the Shankaracharya.
The 11th day in the lunar phase of the Hindu month. This day is observed as a fasting day or at-least people don’t eat grains on this day. It is in reverence to Lord Vishnu.
The nine day period of fasting in reverence to Goddess Devi.
A cow shed. He got cowsheds constructed in Tamkuhi, Tamkuhi road, Gorakhpur, Deoria and donated money for many small cowsheds across Uttar Pradesh and Bihar.
Pathshala is the Hindi name for school.
A makhtab is an elementary school which also focuses on religious teachings.