GRS Experiments Tutor is designed primarily, to illustrates various Gamma Ray Spectrometer experiments using NaI Scintillation detector. It is an innovative self learning software tutor having appropriate menus which, when invoked, illustrate topics, covering theory, principles of Gamma Ray Spectrometry, Experimental procedures etc. Experimental menus provided, facilitate one to enter data after performing the experiments, go through calculation procedures & plotting of graphs results etc. The following are the experiments that are covered in this Tutor software. Study of Cs-137 spectrum calculation of FWHM & resolution for a given scintillation detectorStudy of Co-60 spectrum calculation of resolution of detector in terms energySpectrum Analysis of Co-60 & Cs-137Energy calibration of Gamma Ray SpectrometerFinding an unknown energy of an isotope.The main screen of the GRS TUTOR is shown below, which indicates the list of Experiments.