I can find no indication that the area code for Ghaziabad was ever 085. All current area codes beginning with 085 are in Andhra Pradesh, not Uttar Pradesh, halfway across the country. The area code for Ghaziabad is 0120.
The country code and area code of Bulandshahr- Ghaziabad, India is 91, (0)5732.
The country code and area code of Debai- Ghaziabad, India is 91, (0)5734.
The country code and area code of Garhmukteshwar- Ghaziabad, India is 91, (0)5731.
The country code and area code of Hapur- Ghaziabad, India is 91, (0)122.
The country code and area code of Khurja- Ghaziabad, India is 91, (0)5738.
The country code and area code of Modinagar- Ghaziabad, India is 91, (0)1232.
The country code and area code of Pahasu- Ghaziabad, India is 91, (0)5733.
The country code and area code of Sikandrabad- Ghaziabad, India is 91, (0)5735.
The country code and area code of Siyana- Ghaziabad, India is 91, (0)5736.
The country code and area code of Ghaziaba Dadri- Ghaziabad, India is 91, (0)120.
You can get a state-by-state listing of telephone area codes in India at the link below.
India's telephone area code 011 is New Delhi; however, there are no valid numbers beginning with 011 09.