Repair cost 7,62,000 for water logging amaze

I purchased the Honda Amaze in Sep 2018. On 20 May 2020 due to heavy rainfall, our basement parking was filled with water. We towed the car to Honda Service Station After 2 weeks they replied car should be scarped as the repair value will be Rs. 7,62,000/- I am really screwed up. Waterlogging is the part of Indian roads. How can we avoid it