कन्यामन्यां दर्शयित्वान्यां प्रयच्छतः शत्यो दण्डस्तुल्यायाम् हीनायां द्विगुणः ॥ कZ_०४.१२.१४ ॥
kanyām anyāṃ darśayitvā anyāṃ prayacchataḥ śatyo daṇḍas tulyāyām; hīnāyāṃ dviguṇaḥ
For one who, after showing one maiden, gives another instead, the fine is one hundred (paṇas) when the substitute is of equal status; if she is inferior, the fine is doubled.
The harm is treated as greater when the substitution worsens the match (status/quality), so the penalty scales with the severity of misrepresentation.