Kalpana sits next to 3 phonetic neighbors — Kalpana, Kapila, and Karina are the closest matches by sound. Most share Kalpana's Indian-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"imagination, fantasy"
"having angles, geometric strength"
"Sacred mark; crown"
"God is gracious"
"follower of Christ"
"from Chalon; city on the Saone river in Burgundy, France"
"little rock"
"maiden of the city-state"
"one who will rise again"
"feminine elaboration of Quentin"
"goddess of sight and shining light"
"Good harvest"
"little precious one (diminutive form)"
"from Laurentum, crowned with laurel"
"Modern invented name combining Sha- (African-American naming prefix..."
"heavenly, divine"
Similar sound: These names share phonetic patterns with Kalpana — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Sanskrit origins, giving them the same cultural heritage as Kalpana.
Rhythm: Kalpana is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.