diff --git a/PART16.txt b/PART16.txt
index 3e7300b..558fafe 100644
--- a/PART16.txt
+++ b/PART16.txt
@@ -58,6 +58,23 @@ in the Assembly as the population of the Scheduled Castes in the State or of the
 Scheduled Tribes in the State or part of the State, as the case may be, in respe
 ct
 of which seats are so reserved, bears to the total population of the State.
+(3A) Notwithstanding anything contained in clause (3), until the taking
+effect, under article 170, of the re-adjustment, on the basis of the first censu
+s
+after the year 2000, of the number of seats in the Legislative Assemblies of the
+States of Arunachal Pradesh, Meghalaya, Mizoram and Nagaland, the seats
+which shall be reserved for the Scheduled Tribes in the Legislative Assembly
+of any such State shall be,—
+(a) if all the seats in the Legislative Assembly of such State in
+existence on the date of coming into force of the Constitution (Fiftyseventh Ame
+ndment) Act, 1987 (hereafter in this clause referred to as
+the existing Assembly) are held by members of the Scheduled Tribes, all
+the seats except one;
+(b) in any other case, such number of seats as bears to the total
+number of seats, a proportion not less than the number (as on the said
+date) of members belonging to the Scheduled Tribes in the existing
+Assembly bears to the total number of seats in the existing Assembly.
+
 167
 
 THE CONSTITUTION OF INDIA