NEW DELHI, Oct 30 - The Delhi Police today claimed to have exposed a narco-terrorism gameplan of Pakistan’s Inter-Services Intelligence (ISI) with the arrest of eight ultras and seizure of 50 kg of high-grade heroin, 15 kg RDX and explosive devices.

The ultras— Kamaal ,alias Billa, Riyaz ,alias Aslam, and Shabaz, alias Sripal—were arrested from Sanjay Van near Qutab Institutional Area in South Delhi following an encounter. At their instance, Abdul Razaaq and Rafaqat Ali were arrested from Harsh Vihar and Akhtar, Jameel and Aslam were nabbed from Rohtak, the Commissioner of Delhi Police, Mr Ajai Raj Sharma ,said.

The police seized two bombs weighing approximately 10 kg, 15 kg RDX, 50 kg high-grade heroin, two English revolvers, six live cartridges, four fired cartridges, one detonator, and one timer pencil from their possession. The bombs were so designed that they could be fixed very conveniently on railway tracks. The heroin was worth Rs 50 crore in international market.

They also disclosed that money for militant organisations was sent through hawala channels.

During interrogation, they disclosed that they infiltrated into India for causing bomb explosions in Delhi and its peripheral towns. They had been involved in several bomb explosions in Haryana, Jammu, Delhi and Uttar Pradesh.

Jameel has confessed to exploding a bomb in a Saharanpur- bound train at Old Delhi Railway Station, and having a role in two explosions at Red Fort this year and an explosion at Turkman Gate in 1998. Several persons died in these explosions and a large number of people sustained grievous injuries.

Other ultras have confessed to having planted a bomb at Ballabhgarh in Haryana and Jammu and being involved in several explosions, including one at a railway track in Samba and another near an electric transformer at Bishna.

The Police Commissioner said that Pakistanis had been indulging in large-scale cross-border smuggling of arms, ammunition, explosives and narcotics. The ISI had been providing training and know-how to these people for carrying out explosions and other militant activities.

They had also been instrumental in escorting militants of the Babbar Khalsa, Khalistan Zindabad Force and activists of other militant groups, the Police Commissioner said.

Acting on intelligence reports that some Pakistani ISI agents had infiltrated into the capital and in peripheral towns for causing explosions during Divali , the crime branch sleuths had been deployed in parts of Haryana, Uttar Pradesh and Delhi for the past month.

On further information that on October 27,some Pakistanis were likely to gather near Sanjay Van in Qutab Institutional Area, Mr Sharma said a team of police officials laid a trap and after a brief encounter three persons were apprehended.