What changes were made to paragraph 10 by the Sixth Schedule to the Constitution (Amendment) Act, 1988?
The changes made to paragraph 10 by the Sixth Schedule to the Constitution (Amendment) Act, 1988 are:

a. In the heading, the words "by non-tribals" were omitted.
b. In sub-paragraph (1), the words "other than Scheduled Tribes" were omitted.
c. In sub-paragraph (2), clause (d) was substituted with a new clause that states: "(d) prescribe that no person resident in the district shall carry on any trade, whether wholesale or retail, except under a licence issued in that behalf by the District Council."