ECT and cognition have been best studied in connection with memory functions, as memory affects the sufferer predominantly and its assessment is more standardized. There is substantial evidence to document that ECT produces memory impairment. The percentages of EFFICACY at 3^rd and 6^th ECT with respect to baseline (0^th) scores, 44.57% and 73.30% of SINE WAVE ; 56.63% and 91.30% of BRIEF PULSE. Percentages of IMPAIRMENT at 3^rd and 6^th ECT 13.69% and 34.05% of SINE WAVE and 4.95% and 9.90% of BRIEF PULSE