The hashish oil, recovered on Tuesday night, is estimated to be valued at Rs 3 crore in the international market.
The interrogation of the six-member crew, including the captain, revealed that the men had dumped drugs, weighing 250 kilograms, in the sea to escape the law enforcers. The Narcotic Control Bureau has taken up the probe.
The central agency started its probe on the basis of some WhatsApp chats having reference to drugs.
The first three accused in the case are Anoop Mohammad from Kochi, Kannada serial actress D Anikha and Rijesh Raveendran from Thiruvilvamala who were arrested by the Narcotics Control Bureau in August in the drugs case.
The police said that the questioning was going on and blood tests would be held to ascertain who all used drugs.
The ED decided to attach the house after they probed the dealings of Kodiyeri's son, Bineesh. The son is now in jail in Bengaluru after he was arrested under the Prevention of Money Laundering Act, last month.
The NCB searched Singh's house and office in the morning as part of its probe into alleged drug use in the Hindi film industry.
Bineesh had earlier informed the ED that a loan was taken upon the Old Coffee House at Shangumugham and this amount was handed over to drug case accused Anoop. Latheef co-owned the Coffee House with Bineesh.
The Special NDPS Court passed the remand order after the four days NCB custody ended.
The NCB is likely to approach the court on November 18, when Bineesh's bail plea regarding the current Enforcement Directorate (ED) case would be considered.