1.  For BH number, it is not mandatory to have branch offices (public or pvt sector) in the home state. An email reply from Piyush Jain, Director - MORTH to a new car buyer confirms that. 

2. No minimum duration of employment in the particular company is required as per central govt notification. 

Send email to: 

director-morth@gov.in. 

If you don’t receive reply in 2 days, call 011-23714974 and request them to reply to your email.