Sir(s),
1. I will like to point out to Sh. Mahabir Dhaiyaji that the provisions of section 1(5) of ESI Act, 1948 were not amended making it at par with provisions of Section 1(3). To implement ESI Scheme in selected establishments is well within the powers of the appropriate State Govt. under section 1(5). Still there are some State Governments viz.-Maharashtra which have not so far issued fresh notification under above provisions bringing coverage of certain establishments at par with the provisions of section 1(3). There may be few more such States.
2. I will also like to correct Sh. Korgaonkarji that perhaps State Govt. of Assam had issued notification u/s 1(5) in the year 2012 reducing threshold of coverage of certain establishments u/s 1(5) to 10. If desired, I will make further search on this issue. I may also submit that to my knowledge, there are certain States namely- Gujarat, Pondicherry etc. which had not issued notification u/s 1(5) covering medical or educational institutions. Therefore, in my opinion, so far as coverage of medical and educational institutions is concerned, there is no uniformity. The position is required to be verified from the concerned Regional/Sub/Divisional Office of ESIC.