Newcastle turned their attention to Mariappa after original target James Tomkins signed a new deal with West Ham.
Their latest offer of around £2million is not anywhere being close to what Watford reportedly want for the player.
Manager Dyche said this to the Daily Mirror:
"Unfortunately, as is often the case these days, their offer is nowhere near our valuation, that's the awkward side of the game now, and they do it for their own reasons.
"I couldn't begin to tell you how far away it was - my son's got more in his money box.
"If clubs at our level are helping to develop players, I think it's fair to say that big clubs with money should respect that and go about it in an appropriate manner.
"Rather than tickling us with offers which are nowhere near the player's worth, to try to provoke a reaction from us, we do not need to accept the first bid that comes along.
"When you think about Conor Wickham being sold for £7.5m, and Matt Mills going to Leicester for £5.5m, that's the going rate for players moving in and around our division, and we have to pitch in accordingly."