Transfer to specified familymember or gift - which one to choose to off-market transfer shares in de

Respected Experts,

I hold Equity Shares in Demat account with CDSL/NSDL.

I would like to Off-Market transfer certain Equity shares to my brother's daughter ONLINE.

Since I am transferring to my relative without any consideration, there are two options available to do off-market transfer... namely "Gift" and Transfer to a Specified Family Member".

Can You please clarify, What is Difference between "Gift to Relative" and "Transfer between Specified Family Member", as per Income Tax Act?

Regards,