They were felicitated by the minister of state for agriculture Gajendra Singh Shekhawat and Indian ambassador to Canada Vikas Swarup.
The Congress leader earlier refused to meet Trudeau, claiming the Canadian Prime Minister's cabinet members were connected and supported the formation of Khalistan, a separate Sikh state movement.
In Canada, citizens are also suggesting that with his India visit, Trudeau is only trying to play to the minority gallery back home.
In the morning, they visited the Sabarmati Ashram in Ahmedabad and later offered prayers at the Swaminarayan Akshardham temple in Gandhinagar. "I am grateful to have had the opportunity to visit them, and look forward to the rest of the trip as an opportunity to deepen the already strong Canada-India friendship".
The other family membes also signed the visitor's book.
Canada was upset but it was also left with no doubt that the Modi government will just not do business with Trudeau if he did not alter his "freedom of speech" line. When President Putin visited India (in 2002), Vasundhara Raje, as Minister of State (MEA), and I, as our envoy in Moscow, had received him.
Trudeau along with his family on Sunday visited Taj Mahal in Agra.
The Canadian prime minister is on a week-long visit to India. Trudeau sported an attractive red bandhgala accompanied by a cream-coloured churidar and even a matching stole.
Trudeau, his wife Sophie and children Xavier, Hadrien and Ella-Grace adorned Indian ethnic attire on both the visits.
Another apology wanted? Oh my, what kind of mess has Trudeau and his collection of cabinet ministers walked into this time?
"A lovely place of peace, humanity and truth that is as needed today as ever", Trudeau wrote in the visitor's book at the Sabarmati Ashram. Trudeau himself was seen at an event in Toronto previous year that featured Khalistani flags and other separatist paraphernalia, a development that irked the mandarins in the external affairs ministry.
The sources said there was no "substantive content" in Trudeau's program in Gujarat for which the prime minister's presence was required.
Singh has accused multiple Trudeau cabinet ministers of being Khalistani sympathizers and has been the most vocal with allegations that Canada's Sikh communities are a hotbed of Sikh separatists giving oxygen to extremist elements of the cause.