Hello Deepika,

Since you have not mentioned the subject area or specialization of the diploma I am answering on a general basis. There are a lot of institutions approved by RCI ,  and they offer diplomas on different subjects hence unless you secify the college or specialisation it is difficult to say. However I have provided the RCI list of diplomas with a duration of one year.

1.Diploma in Computer Education (Visual Impairment)

2.Diploma in Early Childhood Special Education (Hearing Impairment).

3.Diploma in Vocational Rehabilitation (Intellectual Disability)

4.Diploma in Early Childhood Special Education (Intellectual Disability)

5.Certificate Course in Prosthetics & Orthotic

6.Diploma in Community Based Rehabilitation

7.P.G. Diploma in Rehabilitation Psychology

8.Professional Diploma in Clinical Psychology

9.Diploma in Hearing Language and Speech

10.Post Graduate Diploma Course in Auditory Verbal Therapy

11. P.G. Dipl. in Developmental Therapy (Mult. Dis.:Physical and Neuro.)

12. Certificate Course in Rehabilitation Therapy

13. Post-Graduate Diploma in Disability Rehabilitation and Management

14. Advance Diploma in Child Guidance and Counselling

15.Diploma in Special Education (Cerebral Palsy) - NIEPMD

Hope this helps.