  Monte Carlo calculations have been done to study the possibilities of using
different spatial distributions, local fluctuations and the number of Cerenkov
photons in gamma ray showers to increase the sensitivity of the PACT
experiment. After matching the trigger rates in data with the predictions of
simulations, the energy threshold of the array for gamma rays is found to be
about 900 GeV. It is shown that a lateral distribution parameter $\beta$ can
increase the signal to noise ratio in the experiment. A typical season of 15
nights should be able to conclusively establish any source with Crab level
fluxes. Two other possible parameters for increase of sensitivity are also
discussed. Preliminary results on the application of the $\beta$ parameter to
the data from PACT experiment are discussed.
