Police yet to identify whether he killed or died in accident. It is learnt he went to Nadapuram to meet the young woman he met through social media.
The visuals of the boy being strangulated started circulating even as the Crime Branch was re-investigating the death.
Many workers raised the complaint that they were not informed sufficiently in advance about the train. Some said that their wages were pending.
As many as 48 school children were stranded on the road near Nadapuram on Tuesday evening.