Motivating Factors
 Motivation is quite an easy task for Indian managers.  Being a haughty people who are used to hard work and long hours, morale stays high.  When morale does occasionally dip, though, religious activities, family time as well as rewards for improved performance are all highly valued motivational tools.
Leadership Style
 As discussed in other areas of this website, Indian leadership is "Top-Down" in nature.  The manager is seen as the authority figure and those employees under that manager's supervision owe their very careers to said manager.  The state of social and economic affairs in India is such that for an employee to give anything less than total devotion and top performance to his or her employer is to risk termination of employment.  Replacing the majority of Indian employees is quite an easy task, as there are so many unemployed in the poor Indian society.
Incentive / Reward System(s)
 As mentioned above in brief, two main tools for motivation are more popular than others.  The first is religious ceremony.  While there is a diverse set of religious faiths in India, one common thread seems to hold true.  That thread being an individual's devotion to a given faith.  Religious ceremony serves to inspire Indians and to remind them of their place in society and in the world as a whole.  The second tool used is that of family.  By providing a special meal for an employee's family, or perhaps a day off, an employer is able to remind his or her employee that time with the family is there, but that their responsibilities in the workplace are vital. 

Both of these tools are reactive in nature, as opposed to proactive incentive and reward systems common in the West cultures.  Good quality and hard work or expected of employees regardless of the extra incentive or reward.