Regulation 53B of the Chartered Accountants Regulations, 1988 covers partnership aspect.
The provisions of Section 2(2) of the Chartered Accountants Act, 1949, Clause 4 of Part I of First Schedule to the Chartered Accountants Act, 1949 read with Regulation 53B of the Chartered Accountants Regulations, 1988 permit CAs to enter into partnership with the members of following professional bodies:
(a) Company Secretary, member, The Institute of Company Secretaries of India, established under the Company Secretaries Act, 1980;
(b) Cost Accountant, member, The Institute of Cost and Works Accountants of India established under the Cost and Works Accountants Act, 1959;
(c) Advocate, member, Bar Council of India established under the Advocates Act, 1961;
(d) Engineer, member, The Institution of Engineers, or Engineering from a University established by law or an institution recognized by law;
(e) Architect, member, The Indian Institute of Architects established under the Architects Act, 1972; (f) Actuary, member, The Institute of Actuaries of India, established under the Actuaries Act, 2006.