Terminal 2 : Third Lane after somewhere between South Exit 1 and 3. During the peak seasons, however, since the airport is very crowded, chauffeurs will contact you by WhatsAPP or SMS by your arrival time (= in terminal time) telling where s/he is. It could be the Waiting Zone of P2N.
Terminal 3: Please walk or take a bus (free) to Terminal 2 and follow the instruction above.