Business With India
Most of the person or persons you, a native, would be interacting within your India business speak good English and they would likely be wearing Western style invests. They would have the majority of members of the same consumer products city parties have all over "the worlds" nowadays. But don't let this fool you, as India is an ancient culture, which has many contextual rules of attitude and decorum.
Though etiquette and business attitude in India is not so radically different from the Western form as business attitude is in Japan, Korea of India, there are significant differences. The good information is that most of these behaviours and mindsets can be learnt if you do your homework before converging the Indians. Now are some speedy guidelines.
The golden rule is: Be always sensitive to the context.