30.White to move

In the position above as you can see White can capture Black pawn on e6.The question is

a)Is it necessary for white to make the first move by 1.Qxe6+/Nxe6 or is there a better option for white to move?

Thanks again Kumara and Mr...... for solving problem 29 by 1.Neg5 fxg5 2.Rxd7 Bf6 white has an advantage by a pair of rook compare to one rook for Black (2.....Qxd7 is a disaster for black because the Queen will fall by 3.Nxe5 Qe8 4.Nf7+ Kg5 5.Nd6+