New Delhi, Sep 3 (IANS): A Delhi court Tuesday sent Lashkar-e-Taiba (LeT) bomb-maker and terrorist Abdul Karim Tunda to five days' police custody.

Additional Sessions Judge (ASJ) Dharmesh Sharma sent Tunda, 70, to police custody till Sep 8 after he was presented in the court amid high security on being discharged from All India Institute of Medical Sciences (AIIMS) where he was undergoing treatment.

The Special Cell of Delhi Police moved the court seeking five days' custody of Tunda, saying he had to be interrogated at length to unearth his terror links.

Tunda was needed to be questioned over the source of oil which he had procured for use in improvised explosive devices (IED), police said.

Police informed the court that during the earlier custodial interrogation, Tunda said he had procured the explosives from a shop in Tilak Bazaar in old Delhi.

"Accused Abdul Karim is to be interrogated regarding the source of oil which was recovered from the shop of Abdul Haq (Tunda's brother). The oil was to be used for making IEDs," police said.

The police also told the court that Tunda was required to be taken to Karnataka and West Bengal for probe.

"Abdul Karim alias Tunda is to be interrogated at length to unearth the anti-national activities being conspired by the accused and his associates...It is, therefore, requested that five days' police custody of accused Abdul Karim alias Tunda may kindly be given," police said.

The Lashkar-e-Taiba (LeT) terrorist is suspected to be involved in over 40 bombings in the country.

In Delhi, he is wanted in 21 terror cases related to 1994, 1996 and 1998.

An aide of fugitive don Dawood Ibrahim, the alleged LeT terrorist was also wanted for suspected involvement in the 1993 Mumbai serial blasts.

Tunda was arrested in Uttarakhand's Banbasa area close to the Nepal border when he was trying to enter India Aug 16.

Tunda was involved in the 1993 Mumbai serial bombings that left over 250 dead, Delhi bomb blasts of 1997-98 and serial bombings in Uttar Pradesh and also in Haryana and Punjab, police said.

Police said he trained young radicals in preparing bombs with locally available materials like urea, nitric acid, potassium chloride, nitrobenzene and sugar, and planting these in crowded places.