The family said in a statement that Singh, the son of former prime minister Chaudhary Charan Singh, was diagnosed positive for COVID-19 on April 20.
Former Labour Party leader Jeremy Corbyn said that the actions of Indian government were giving the impression that globalisation was being forced upon on them.
However, later in the evening, Modi ended his sit-in after the release of his supporters in Sultanpur.
The narrow characterisation of farmers pushes people to think that they cannot organise themselves, that they are manipulated by activists with strident ideological positions
Various farmers' organisations are protesting against the Centre's three new farm laws, terming the legislations as "anti-farmers".
Several farmers visited 'Kisan Ghat' in New Delhi on Wednesday morning to pay tributes to Chaudhary Charan Singh, who was known for his farmer-friendly policies.