Rahul Mehta Gandhinagar LsCandidate

Which two Bharatiya played most imp role in series of defeats that Bharat suffered by Portugues in 1503 ad vasco de gama vs kerala king war ?
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They were also 'responsbile' for series of defeats Bharatiya have been suffering against Europeans since 1503ad
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Hint : its is an extremely complex question

Hint2 : you all know their names and whole world knows their names and their actions !!
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Pls think. No need to comment. I will write my answers much much later !!