Tidal disruption by massive black holes is a phenomenon, during which a large part of
gravitational energy can be released on a very short time-scale. The time-scales and
energies involved during X-ray and IR flares observed in Galactic centre suggest that they
may be related to tidal disruption events. Furthermore, aftermath of a tidal disruption of
a star by super-massive black hole has been observed in some galaxies, e.g.
RX J1242.6-1119A. All these discoveries increased the demand for tools for tidal
disruption study in curved space-time. Here we summarise our study of general relativistic
effects on tidal deformation of stars and compact objects.