Pradesh

Most of India's apples come from two regions in the north of the country -Jammu and Kashmir and neighbouring Himachal Pradesh.

Dr Thakur is based in the traditional northern apple growing region of Himachal Pradesh and his research focuses on the improvement of apples through breeding.

The newly-wed couple from Indore city in the central state of Madhya Pradesh had chosen Meghalaya for their honeymoon because they had heard it had "very beautiful valleys", Raja's brother Sachin Raghuvanshi told the BBC, the weekend before Sonam's arrest.

But on Monday morning, Director General of Meghalaya police Idashisha Nongrang said Sonam had surrendered at a police station in Uttar Pradesh's Ghazipur district.

Three other suspects, who are also from the couple's home state Madhya Pradesh, have been arrested in overnight raids, DGP Nongrang said.