Sometimes clauses are written in numbers like clause (1) and sometimes in alphabets like clause (a) and sometimes in roman like clause (i)
Why is it so??
actually it is a heirarchy system. first comes the section, then sub-section, then clause, then sub-clause. now lets take an example, sec. 142(1)(ii)(a). if you jave read it then it is read as sub-clause a of clause ii of sub-section 1 of section 142. i hope your query is clear.