H1B and H4 visa renewal process

[gurudattakg]

Hi,

My H1B visa is having validity till Mar-28-2013. Currently I am In India and will travel to US by Jan-2013. My spouse H4 visa is not stamped yet and it will be done by Jan-2013.

Please clarify the below queries on visa renewal.

1. How long in advance should I apply for H1B visa renewal? What is the maximum amount of time taken for renewal completion?
   
2. If my spouse is in India, Can I apply for H4 visa renewal from US at the same time when I apply for my H1B visa renewal?
   
3. If I need to travel after Mar-28-2013 ie after visa expiry, Can I still apply for H1B and H4 visa renewal from India?
   

Regards,

Gurudatta

[pontevecchio]

What is your job situation?