Sure. Classify them as caucasians all you want. I can spot one from a mile away. They have distinct features.They are actually classified as caucasians or indo caucasoid to be more precise. The vast majority. It's about bone structure.
There is no "indian" race.
It's a nationality.
If you want to play that silly game, might as well put the Arabs in the caucasians bucket as well. At least they're closer featurewise and geographically. At least there are many who you might easily mistake as Italians, Spanish, or even French and English.
So let's not go there. And be proud of your Indian race.