He congratulated the probe team for tracing the real culprits behind the crime within a short period.
Palakkad native Nimisha Priya was convicted of murdering Yemen national Talal Abdo Mahdi.
The Chief Minister was addressing a press conference organised in Shoranur as part of the ongoing Nava Kerala Sadas.
CPM leadership expelled him from the party on Monday hours after police booked him.
The boy, who is a grade 4 student, hails from Mannarkkad in Palakkad.
Albin Joseph had gone to the CUSAT after he was invited by his friends.
IUML state president Sadiq Ali Shihab Thangal reiterated that his party would never switch sides.
Mangalore - Thiruvananthapuram Maveli Express, Ernakulam - Shornoor MEMU and Ernakulam - Guruvayoor Express have been cancelled on Saturday.
Though the cards were used for the Youth Congress' organizational election, it is an issue affecting national security, Surendran said.