Meanwhile, runaway overnight leader Mardan Mamat of Singapore shot his fourth straight round in the 60s to end a two-year title drought by romping to a commanding six-shot victory. He totaled 20-under 268 and won by six shots over Lionel Webber (70).
Among other Indians, Shiv Kapur (72) was tied 20th at seven-under 281, while Arjun Atwal (72) and Himmat Rai (68) were tied 33rd at four-under 284. Rahil Gangjee (69) was tied 38th at three-under 285 and Jeev Milkha Singh (72) was tied 52nd. Rashid Khan, winner last week in Thailand, faltered over the weekend with rounds of 74 and 76 and finished way down in 56th.
Chiragh's previous top-10 was tied fourth at the 2013 Hero Indian Open.
Mamat, the 47-year-old veteran completed a stylish wire-to-wire victory with a final round of three-under-par 69 at the Manila Southwoods Golf and Country Club for a winning total of 20-under-par 268 sealed his fourth Asian Tour success and second in the Philippines.