Table:
text: Duronto Express
List of Duronto Express trains
List of Duronto Express trains
Service Train_number Train_name Source_ Departure Destination Arrival
10 12262 Howrah Chattrapati Shivaji Duronto Howrah Junction 08:20 Chhatrapati Shivaji Terminus 10:30
11 12263 Nizamuddin Duronto Pune Junction 11:10 Hazrat Nizamuddin 07:15
11 12264 Nizamuddin Duronto Hazrat Nizamuddin 11:00 Pune Junction 07:10
12 12265 Jammu Duronto Delhi Sarai Rohilla 22:15 Jammu Tawi 07:10
12 12266 Jammu Duronto Jammu Tawi 19:25 Delhi Sarai Rohilla 04:00
13 12267 Ahmedabad Duronto Express Mumbai Central 23:25 Ahmedabad Junction 06:00
13 12268 Ahmedabad Duronto Express Ahmedabad Junction 23:45 Mumbai Central 06:15
14 12269 Chennai Duronto Chennai Central 06:40 Hazrat Nizamuddin 10:35
14 12270 Chennai Duronto Hazrat Nizamuddin 15:50 Chennai Central 20:10
15 12271 Lucknow Duronto Lucknow Charbagh 23:30 New Delhi 07:30

Question: What is the Jammu-Duronto train service number on the Duronto Express?