Is the one-year master's duration in UK or European countries applicable for veterinary studies, since in India it is two years in Europe?

No, a one-year master's is not typical for veterinary studies in the UK or Europe.

Veterinary medicine programs usually last several years - often 4 to 6 years - due to the extensive clinical and scientific training required. For example, graduate entry programs for those with a relevant background (like yours in medical science) are usually four years.

These durations are longer than the typical two-year master's in India, so you should plan for a longer study commitment if pursuing veterinary medicine abroad.