Route to cambodia

Please help me find out the permitted route to fly to Phnom Penh. it seems the only possibility is via Doha and Seoul. Is this correct? I have been trying to phone the Cambodia embassy at New Delhi

but all the numbers are either not answering or they are wrong. Please reply urgently as I need to book my flight to reach on 10th November for employment. The airlines and travel agencies all recommended me to enquire from the

Cambodian Embassy