  The violation of Leggett-Garg type inequalities (LGtIs) is studied on a two
level atom, driven by an external field in the presence of a squeezed thermal
reservoir. The violations are observed in the underdamped regime where the
spontaneous transition rate is much smaller compared to the Rabi frequency.
Increase in thermal effects is found to decrease the extent of violation as
well as the time over which the violation lasts. With increase in the value
squeezing parameter the extent of violation of LGtIs is seen to reduce. The
violation of LGtIs is favored by increase in the driving frequency. Further,
the interplay of the degree of violation and strength of the measurements is
studied. It is found that the maximum violation occurs for ideal projective
measurements.
