Normal office hours are 10:00 a.m. to 5:00 p.m. However, in some large cities [e.g., Mumbai], some places of business start working earlier to avoid congested traffic while commuting. Increasingly, among the business organizations, there is also a trend towards a longer working day, which can start as early as 7:30 a.m. and last till 8:00 p.m.
Business Card Etiquette