#include <bits/stdc++.h>
using namespace std;
int main() {
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    int a[200005];
    int minn = 1000000000, maxx = 0;
    int l, r;
    for (int i = 1; i <= n; i++) cin >> a[i];
    int flag = 0;
    for (int i = 1; i < n; i++)
      if (abs(a[i] - a[i + 1]) >= 2) {
        l = i;
        r = i + 1;
        flag = 1;
        break;
      }
    if (flag) {
      cout << "YES" << endl;
      cout << l << " " << r << endl;
    } else
      cout << "NO" << endl;
  }
  return 0;
}
