Yes, Indian Rupees (INR) are widely accepted in Coimbatore as it is the official currency of India. You can use cash to pay for goods and services in local stores, markets, hotels, restaurants and cabs. However, it is important to carry smaller amounts to facilitate transactions. Credit and debit cards are also accepted at most hotels, restaurants and shopping centers in the city. It is advisable to exchange foreign currency for Indian rupees at authorized banks or exchange bureaus.