Indica sits next to 3 phonetic neighbors — India, Indira, and Monica are the closest matches by sound. Most share Indica's English-origin cluster, so the rhythm and vowel shape carry across the list.
You searched for names like
"of India, from the Indus River region"
"follower of Christ"
"noble"
"day's travel or work"
"divine, heavenly"
"made from kermes insect dye"
"sword, firebrand (Germanic etymology)"
"torch, sun ray"
"harmony, freedom from conflict"
"bright, shining (variant of Helen)"
"noble, exalted"
"thankful; God has heard"
"cinnamon, cassia tree"
"Odin's warrior"
"diminutive of Aodh (fire)"
"flat grassland, open meadow"
"tailor, one who cuts cloth (from Taylor root)"
"flower"
"modern invented Caribbean feminine name"
"hill"
Similar sound: These names share phonetic patterns with Indica — similar vowel sounds, consonant clusters, or rhythm.
Shared roots: Several names on this list have Latin origins, giving them the same cultural heritage as Indica.
Rhythm: Indica is a 3-syllable name. Names with the same syllable count tend to feel interchangeable when you're narrowing your list.