A Coypu Rat typically lives 6–8 years. Most of what determines whether it gets there is routine care rather than anything dramatic.
Keep the records
Booster schedules run from the original dates, and a new vet asks for the history first.
Balancing calm against semi-aquatic
Breeds described as both calm and semi-aquatic need the two managed together rather than separately. With a medium animal that usually means a predictable routine first and training second - the routine is what makes the training stick.
Exotics vets
Find one before you need one; not all clinics see these species.
Planning for about 7 years
A Coypu Rat is with you for about 7 years. Budget and routine both need to survive that, including the last quarter of it when a medium animal needs more veterinary attention than it did young.
A breed from South America, living in India
The Coypu Rat was developed in South America. The part that travels badly is rarely temperament - it is the coat and the tolerance for heat. Plan the year around that and most of the rest follows.
The annual check
Once a year for an adult animal, and book it before the hot months rather than during them.
Teeth and gut
Both go wrong in these species and both trace back to diet. Constant fibre and chewing material prevent most of it.