How can I legally recover my money?

I live in Pune and was sharing a flat with my roommate. The actual rent for the flat is ₹13,000, and the deposit is ₹12,000 (confirmed directly from the real owner). However, my roommate hid this information and told me that my rent share was ₹11,000 per month. I paid her ₹11,000 for 4 months (₹44,000 total). My actual share should have been ₹6,500 per month, so I have overpaid ₹18,000. She also took ₹15,000 as a deposit from me, and one EMI of ₹1,481 from my credit card remains unpaid. In total, she owes me ₹27,481. I have GPay proofs of all payments. She also made someone pretend to be the “owner” on a call, proving she misled me knowingly. What is the best legal way to recover my money — should I file a money recovery case or a complaint under IPC Sections 420 and 406?