If you are travelling to India as operating crew, you do not require a Visa.
If you are travelling there as a tourist, you will require a Tourist Visa, regardless of your profession.
If you are travelling there for an airline interview/assessment, i.e. you are a professional pilot, technically you require a Business Visa. The Business Visa has a rather lengthy processing time, and many pilots travelling to India for airline interview/assessment purposes simply get a Tourist Visa (I did, with no questions asked).
I hope that that helps.
Regards,
Old Smokey