NRI person as Nominee on resident's brkge acct?

#1
Resident Indian person will be opening brokerage account at Zerodha or RKSV.
He would like to nominee NRI person(US). NRI have pan card and details but a US address.
Is it possible? What are advantages/disadvantages of NRI nominee?
ps: this is not NRI opening brokerage and nominating resident indian as in most cases.
brokerage customer service did not reply query.
 

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