Invariant mass distribution for neutral pion and $\eta$ meson candidates at intermediate (left) and high (right) transverse momenta reconstructed with both photons in the EMCal in pp collisions at $\sqrt{s}=$ 13 TeV using the EMCal L1 trigger sample. The combinatorial background is described using the rotation background technique. For the higher $p_{\rm T}$ slice only the $\eta$ meson invariant mass window is shown as the $\pi^{0}$ meson cannot be reconstructed using the EMC invariant mass technique at these momenta.