Kafir Ka Kanoon is a collection of selected poetries of Nidhi Jha. In her works, she has highlighted the various forms of love and the need of eternal love in a person's life. She believes that limiting love to a person or thing is disrespectful to the essence love. Love is omnipresent like God. Apart from this, in her poems, she has also expressed her love for Bihar. She says that Bihar resides in the soul of every Bihari. Through her poetries, she is trying to present the troubles of Bihar battling with flood, poverty, illiteracy and much more problems. She is also expressing her thoughts on social evils, women's life and politics through her poems.