is set to the blue of the atomic resonance, the red detuned peak is dominant. In the absence of drive laser, the height of blue detuned peak would have increased, and the height red detuned peak would have diminished. However, due to Mollow gain in the the red detuned probe and Mollow loss in the blue detuned probe in the presence of the red detuned drive we see the opposite in Fig. \[fano\](e) with respect to what is expected in the case when the atoms are not optically driven. Equal height for the two peaks is obtained when the cavity resonance is 8MHz detuned towards blue of atomic frequency as shown in Fig. \[fano\](f). In addition to this there also seems to be gain around -13 MHz which is the drive frequency. This is because of coherent energy exchange between drive and cavity. The observations mentioned above are explained using a semi-classical theory in the discussion section.

In addition to gain in the probe, we also observe lasing without any seeding (no probe light). This is because of the coupling of light into the cavity by the fluorescing atoms. B. R. Mollow was first to calculate the fluorescence spectrum of 