Can anyone tell me the classification of this bug? I found it in Rajasthan after it rained.
Hi it definitely looks like a red velvet mite. They often are called "rain bugs". They are of a variety of species and sizes and can be quite large - up to 1 or 2 Cm. These links might help.
This is a Trombidium mite (class Arachnida).
We're looking for long answers that provide some explanation and context. Don't just give a one-line answer; explain why your answer is right, ideally with citations. Answers that don't include explanations may be removed.