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