Family members of the H-1B foreign worker are admitted to the United States in the H-4 category. Qualifying family members include only the spouse and unmarried children under 21 years old. H-4 dependents are admitted for the same period of time for which the H-1B foreign worker is admitted. H-4 dependents may alternatively be admitted in other nonimmigrant categories for which they qualify. H-4 dependents may undertake studies while remaining in the H-4 category, however, they may not engage in any form of employment.
I will begin with a sincere thanks for all the information I have got from these forums over the last few months and the amount of confidence I have gained through it.
Now, its my turn give back something by sharing my experience and hope this helps in giving some information to the others like me.
My visa was scheduled for 08:15 AM I reached the car parking in the nearby Malcha Marg parking by 7:45 AM. It is few minutes walk from there. I reached embassy by 7:55 or so. I was with my wife who would get an H4.