"We have seized 12 quintal Ammonium Nitrate from house of Patel."ATS chief Ajay Tomar told PTI.
Hasmukh Patel has been taken into custody for interrogation in connection with the seizure, he said.
"We are interrogating Patel to find out the involvement of other people in this case. Patel does not have licence to keep such material," Tomar said, adding that further investigation is on.