#include <iostream>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <algorithm>
#include <string>
#include <cmath>
#include <cstdio>
#include <iomanip>
#include <fstream>
#include <cassert>
#include <cstring>
#include <unordered_set>
#include <unordered_map>
#include <numeric>
#include <ctime>
#include <bitset>
#include <complex>
#include <random>

using namespace std;

#define int long long

void solve() {
    int n;
    cin >> n;
    vector<int> a(n);
    for (auto &t : a) {
        cin >> t;
    }
    for (int i = 0; i + 1 < n; i++) {
        if (abs(a[i] - a[i + 1]) > 1) {
            cout << "YES " << i + 1 << ' ' << i + 2 << endl;
            return;
        }
    }
    cout << "NO" << endl;
}

signed main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int q;
    cin >> q;
    while (q--) {
        solve();
    }
}