GAV for property with vacancy

 If a house property was occupied for 8 months say from 1/4/08 to 1/8/08 for 5000 rs per month and from 1/12/09 to 1/4/09 for 7500 per month and subsequently the selected value of Municipal value Standard rent and fair rent works out to be higher than actual rent of 50,000 (5000*4 + 7500*4). So to check out with selected value for reasons due to vacany or not which rent will be taken for the vacant 4 months..whether 4*5000 or 4*7500????