Contamination of groundwater by Arsenic poses severe health hazard problem. As trivalent Arsenic ion (Arsenite) is more toxic than pentavalent ion (Arsenate), present work focuses on removal of Arsenite using dry Prunus Amygdalus (Almond) shells as adsorbent. In this work, pyrolysed and non-pyrolysed shells of particle size 1.18mm are used in batch process. The uptake capacity of the present adsorbent was studied as a function of pH, adsorbent dosage and contact time. For pyrolysed and non-pyrolysed, Optimum pH was found to be 4 and 5 respectively. Effective dosage of pyrolysed and non-pyrolysed shells was found to be 2 and 2.2 g/L respectively and optimum contact time for pyrolysed and non-pyrolysed shellswas found to be 30 minutes and 25 minutes respectively for Synthetic solution. The optimum conditions were considered to treat the hair dye solution for Arsenic removal. The result proves that the Almond shells are effective adsorbent in Arsenic removal.