Transfer of stocks within USA from resident account to non-resident account as gift

can I transfer stocks from brokerage account(of son/me, US resident) held with broker firm X to brokerage account (of father, non-US resident, in US only) held with broker firm Y? as a Gift
Do I need to use DTC?
Please note both X and Y are US-based broker firms. Both brokerage accounts are in USA. Heance, Both brokerage accounts are US based.

For outgoing/source account, the account holder is US resident(H1B visa) and
for incoming/destination account, the account holder is Indian National.