Karpal's son, Gobind Singh Deo, said the family was planning to hold the funeral either on Saturday evening or Sunday morning but a final decision will be made later today or tomorrow.
"A lot of friends and family members from overseas want to come back and pay their last respects at the family home (in Jalan Utama in Penang.)
"We plan to hold it either on Saturday evening or Sunday morning to allow well-wishers to make their travelling arrangements," he said.
He said he understood the feelings of the people who wanted to know more about the accident but appealed to them to give the family the privacy and time to mourn.
"We will update the people later," he said.