Appreciate your interest and will to respond on this question
My parents are having a long term US Visa valid for next 2 years, i had few questions regarding same as its important for them to know it before they apply
If there is a change in name spelling in new passport , will the visa on old passport be invalid
If there is a change in address in new passport , will the visa on old passport be invalid
When the authorities in india (customs etc ) check the visa before catching a flight to US see that there is a difference in new and old passport (address or name ) , will they create a problem in travelling or will decline the travel ?
Thanks & Regards