Meaning of Indian name: Nidhi. Meaning of the name Nidhi is 'Wealth'. Nidhi is a name of Hindu / Indian origin, and is commonly used for females. The name number for Nidhi is '8'.Click here to get the numerological analysis for the name 'Nidhi'.eaning of Indian name: Nidhi. Meaning of the name Nidhi is 'Wealth'. Nidhi is a name of Hindu / Indian origin, and is commonly used for females. The name number for Nidhi is '8'. Click here to get the numerological analysis for the name 'Nidhi'.