India, April 7 -- About 60.88 kg of marijuana worth Rs.63 crores has been seized at Delhi's Indira Gandhi International (IGI) airport in three separate instances, the customs department said on Sunday, adding that four people have been arrested over the confiscations.

In the first case, on March 22, an Indian, who landed from Bangkok via Colombo, was intercepted based on suspicion and 19 plastic pouches were found in his luggage. "They contained a green-coloured narcotic substance, weighing 11.973 kg. The material tested positive for ganja/marijuana, with an estimated value of Rs.12 crores," said a customs official, adding the person was then arrested.

In the second case, on March 29, two female Thai nationals, from Bangkok, were arrest...