Neethu,
As I told you earlier, if you continually ask people to be present for Night shifts, they will be fed up of the same and quit. You may say that it is day time for your american counterparts when it is night time for your Indian employees.
When you are prepared to work night, why not the amercan counterparts also work in night i.e. during your day time. There must be a thorough analysis required.
Whenever batch process is going beyond the shift hours, we used to maitain a log sheet where the employees of the night (at the time of winding up their job) shift, record what they did in the previous shift and how long the process is going to take place, etc. At times, the next shift employees arrive much before time, so that they could meet their colleagues in the previous shift to understand what is to be followed next. This helps uninterrupted flow of jobs in any shift operation.
If your organization is engaged in attending to certain customer queries or any other job that requires continual follow up, then the above system can be adapted. Then you MUST have the system of round the clock shift operation.
Morever, the younger boys (or girls) will work for a few months / years will get married. When he/she is requierd to work in night shift (in your organization), his / her spouse is employed in other company in day shift, where these two do not meet only. Probably, they might accept the night shift for addressing their current economic requirement, but surely will not last long. This will create tussle between couples and finally end in separation. I have come across many such people - one of them even my own relative - who did not have child for long time after their marriage and were pressurized by their parents to quit such an organization.
Therefore a lot of socio-economic problems attached to the system of "Your way of working". Think and take an appropriate decision.
Balaji