  In this paper, we study the capability of different long-baseline experiment
options at the KM3NeT facility i.e., P2O, Upgraded P2O and P2SO to probe the
light sterile neutrino and compare their sensitivities with DUNE. The P2O
option will have neutrinos from a 90 KW beam at Protvino to be detected at the
ORCA detector, the Upgraded P2O will have neutrinos from the upgraded 450 KW
beam to be detected at the ORCA detector and the option P2SO will have
neutrinos from a 450 KW beam to be detected at the upgraded Super-ORCA
detector. All these options will have a baseline around 2595 km. Our results
show that the experiments at the KM3NeT (DUNE) would be more sensitive if the
value of $\Delta m^2_{41}$ is around 10 (1) eV$^2$. Our results also show that
the role of near detector is very important for the study of sterile neutrinos
and addition of near detector improves the sensitivity as compared to only far
detector for 3+1 scenario. Among the three options at KM3NeT, the sensitivity
of P2O and upgraded P2O is limited and sensitivity of P2SO is either comparable
or better than DUNE.
