According to Ease of Compliance to maintain register regulation 2017, the registers under
(i) Building and Other Construction Workers (Regulation of Employment and Conditions of Service) Act, 1996 (27 of 1996);
(ii) Contract Labour (Regulation and Abolition) Act, 1970 (37 of 1970);
(iii) Equal Remuneration Act, 1976 (25 of 1976);
(iv) Inter-State Migrant Workmen (Regulation of Employment and Conditions of Service) Act, 1979 (30 of 1979);
(v) Mines Act, 1952 (35 of 1952)
(vi) Minimum Wages Act, 1948 (11 of 1948);
(vii) Payment of Wages Act, 1936 (4 of 1936);
(viii) Sales Promotion Employees (Conditions of Service) Act, 1976 (11 of 1976); and
(ix) Working Journalists and Other Newspaper Employees (Conditions of Service) and Miscellaneous Provisions Act, 1955 (45 of 1955);
are maintained under 1 register. Also online register can be maintained with shram suvidha portal here
https://shramsuvidha.gov.in/eRegister
The rules are here
https://shramsuvidha.gov.in/home.action