The incident took place last Sunday when five people were lynched to death by villagers in Dhule district on suspicion of being child-lifters.
Dhule lynching: Maharashtra CM Devendra Fadnavis for stronger measures by social media platforms to check rumours
Fadnavis said modern means of communication are for sharing information and knowledge and should be used judiciously.
The Centre today asked the states and Union territories (UTs) to check incidents of mob lynching fuelled by rumours of child lifting on social media.
Maharu Pawar, 22, was arrested from the neighbouring Nandurbar district yesterday, Dhule Superintendent of Police M Ramkumar told media.
WhatsApp said it would fund research to find out why misinformation spreads on the platform like wildfire in India.
Describing the Dhule lynching incident as "very painful and cruel", Maharashtra Chief Minister Devendra Fadnavis today announced a compensation of Rs 5 lakh for the kin of the deceased.