Sharif Mahmud Apu, Public Relations Officer of the Home Ministry, told UNB that Home Minister Asaduzzaman Khan went to Sheikh Selim's Banani residence around 11:30 am to console him.
Zayan Chowdhury, 8, son of Sheikh Selim's daughter Sheikh Amena Sultana Sonia, was killed in an explosion that ripped through a hotel in Colombo where he was staying along with his family.
Besides, Zayan's father Mashiul Haque Chowdhury, injured in the blast, was admitted to a hospital there.
Awami League presidium member Sheikh Selim is a cousin of Prime Minister Sheikh Hasina.
Zayan's body will be brought back home on Wednesday on completion of the formality. The body will arrive at Hazrat Shahjalal International Airport around 11:30am, said Awami League acting General Secretary Mahbubul Alam Hanif.
From there, the body will be brought directly to their Banani house and later he will be buried at Banani graveyard after a namaz-e-janaza, he added.
On Sunday, Prime Minister Sheikh Hasina at a reception in Brunei said the son-in-law of Sheikh Selim was injured in Sunday's explosions in Sri Lanka and his grandson remained missing.
A series of blasts at churches and hotels in and just outside Sri Lanka's capital killed at least 290 people and injured hundreds more on Easter on Sunday. It was the nation's worst violence since a bloody civil war ended a decade ago.