Justice G.S. Singhvi, and Justice Asok Kumar Ganguly in a case of Sanjay Batham vs Munnalal Parihar & Ors. Decided on 1 November, 2011 Disability refers to any restriction or lack of ability to perform an activity in the manner considered normal for a human being. Permanent disability refers to the residuary incapacity or loss of use of some part of the body, found existing at the end of the period of treatment and recuperation, after achieving the maximum bodily improvement or recovery which is likely to remain for the remainder life of the injured. Temporary disability refers to the incapacity or loss of use of some part of the body on account of the injury, which will cease to exist at the end of the period of treatment and recuperation. Permanent disability can be either partial or total. Partial permanent disability refers to a person's inability to perform all the duties and bodily functions that he could perform before the accident, though he is able to perform some of them and is still able to engage in some gainful activity. Total permanent disability refers to a person's inability to perform any avocation or employment related activities as a result of the accident. The permanent disabilities that may arise from motor accident injuries, are of a much wider range when compared to the physical disabilities which are enumerated in the Persons with Disabilities (Equal Opportunities, Protection of Rights and Full Participation) Act, 1995 ("the Disabilities Act", for short). But if any of the disabilities enumerated in Section 2(i) of the Disabilities Act are the result of injuries sustained in a motor accident, they can be permanent disabilities for the purpose of claiming compensation. The percentage of permanent disability is expressed by the doctors with reference to the whole body, or more often than not, with reference to a particular limb. When a disability certificate states that the injured has suffered permanent disability to an extent of 45% of the left lower limb, it is not the same as 45% permanent disability with reference to the whole body. The extent of disability of a limb (or part of the body) expressed in terms of a percentage of the total functions of that limb, obviously cannot be assumed to be the extent of disability of the whole body. If there is 60% permanent disability of the right hand and 80% permanent disability of left leg, it does not mean that the extent of permanent disability with reference to the whole body is 140% (that is 80% plus 60%). If different parts of the body have suffered different percentages of disabilities, the sum total thereof expressed in terms of the permanent disability with reference to the whole body cannot obviously exceed 100%.