A Russian Blue Kitten typically lives 15–20 years. Most of what determines whether it gets there is routine care rather than anything dramatic.
Vaccination
Core feline vaccines plus rabies from around eight weeks, then boosters. Indoor-only cats still need them.
The annual check
Once a year for an adult cat, and book it before the hot months rather than during them.
Keep the records
Booster schedules run from the original dates, and a new vet asks for the history first.
Low-shedding, and what it costs
The Russian Blue Kitten sheds little. That is why the coat needs more work rather than less: hair that does not fall out mats against the skin instead, so clipping becomes a scheduled expense.
A breed from Global / Various, living in India
The Russian Blue Kitten was developed in Global / Various. 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.
What “gentle” means day to day
The Russian Blue Kitten is described as gentle, quiet, shy. Of those, gentle is the one that shapes an ordinary day most. It is easy to read as a selling point and harder to live with than the word suggests, because it does not switch off when you are busy.
Planning for about 17 years
A Russian Blue Kitten is with you for about 17 years. Budget and routine both need to survive that, including the last quarter of it when a small cat needs more veterinary attention than it did young.