A written communication, usually expressing admiration or support, sent by a fan to a celebrity, author, or artist.

A letter written to express enthusiasm for a particular activity or interest, not necessarily directed to a celebrity.

उत्साही पत्र

English Usage: He wrote a fan letter to the local team, hoping to encourage them for the next season.

Hindi Usage: उन्होंने स्थानीय टीम को उत्साही पत्र लिखा, उम्मीद करते हुए कि वे अगले सीजन के लिए प्रेरित हों।