Hello Meenakumari, 

If a person is orthopaedically Handicapped (OH)– a) Locomotor Disability, and his/her disability is more than 40% then he/she will be given reservation category.

Also note that there is no separate reservation for different type of disabilities, all disabilities will be considered PWD category irrespective of their type.

Also a person in general category will have GEN PWD category and other with ST certificate can be considered under PWD ST category (parellel or Sub category) 

Hope i t solves your query  feel free to comment.