#include <bits/stdc++.h>
using namespace std;
int main() {
  int t;
  cin >> t;
  while (t--) {
    int n;
    cin >> n;
    vector<int> a(n);
    for (int i = 0; i < n; ++i) cin >> a[i];
    bool pos = 0;
    for (int i = 1; i < n; ++i) {
      if (abs(a[i] - a[i - 1]) > 1) {
        pos = 1;
        cout << "YES\n";
        cout << i << ' ' << i + 1 << '\n';
        break;
      }
    }
    if (!pos) cout << "NO\n";
  }
}
