Saathi ho here is one strange problem that one friend is facing, which perhaps lot of guys who are in US have already encountred so I am asking for your suggestion;

My friend got I-20 from one uni from US, he applied for VISA paid all SEVIS fee and application fee. Luckily he got VISA, but suddenly he got good scholarship offer along with I-20 from another university in US.

Now can he go to USA with VISA that was given based upon I-20 of first university and join another University (latter one). What is the process for doing that ?

Does he need to apply once again for VISA ?
What are the chances of getting VISA approval again if he goes to embassy ?

Please suggest !