India's ruling Bharatiya Janata Party (BJP) President Amit Shah has spoken to BNP Chairperson Khaleda Zia over telephone, an aide says.
Khaleda has been at her Gulshan office since Saturday after police cordoned it off.
The former prime minister had reportedly fallen sick after police used pepper spray on her supporters inside her office on Jan 5.
Shah called at around 10:30pm on Wednesday to inquire about Khaleda's health, her Press Secretary Maruf Kamal Khan told the media Thursday.
He wished the former prime minister a swift recovery, Khan added.
Khaleda thanked the BJP president for inquiring about her.
The press secretary said the party chief had recovered a bit.
Recent Indian media reports claimed the BNP had approached the BJP to "restore democracy in Bangladesh".
