  We present spectropolarimetric observations of an active region recorded
simultaneously in the H$\alpha$ Ca II 8662 {\AA} lines. The sunspot exhibits
multiple structures, including a lightbridge and a region where Ca II 8662
{\AA} line core is in emission. Correspondingly, the H$\alpha$ line core image
displays brightening in the emission region, with the spectral profiles showing
elevated line cores. The stratification of the line-of-sight magnetic field is
inferred through non-LTE multiline inversions of the Ca II 8662 {\AA} line and
the weak field approximation over the H$\alpha$ line. The field strength
inferred from the H$\alpha$ line core is consistently smaller than that
inferred from inversions at $\log \tau_{500}$ = $-$4.5. However, the study
finds no correlation between the WFA over the core of the H$\alpha$ line and
that inferred from inversions at $\log \tau_{500}$ = $-$4.5. In regions
exhibiting emission features, the morphology of the magnetic field at $\log
\tau_{500}$ = $-$4.5 resembles that at $\log \tau_{500}$ = $-$1, with slightly
higher or comparable field strengths. The magnetic field morphology inferred
from the core of the H$\alpha$ line is also similar to that inferred from the
full spectral range of the H$\alpha$ line in the emission region. The field
strength inferred in the lightbridge at $\log \tau_{500}$ = $-$1 is smaller
than the surrounding umbral regions and comparable at $\log \tau_{500}$ =
$-$4.5. Similarly, the field strength inferred in the lightbridge from the WFA
over the H$\alpha$ line appears lower compared to the surrounding umbral
regions.
