The two women visited Pakistan recently and were forced to remove their mangalsutra, bindi, bangles and footwear by the Pakistani authorities before they were allowed to meet Mr Jadhav through a glass screen.
Delhi BJP spokesperson Tajinder Pal Singh Bagga bought the footwear online and gave the address of the Pakistan High Commission for its delivery.
"Pakistan wants our slippers. Let's give them slippers. I have ordered slippers and sent to Pakistan High Commission," he tweeted.
He also launched an online campaign requesting the "nationalists" to send slippers to Pakistan.
"Over a hundred people sent footwear to Pakistan High Commission within a few hours after I did it," he claimed.
In identical statements in both houses of Parliament, External Affairs Minister Sushma Swaraj said yesterday there was "serious and gross violation of human rights of the family members of Jadhav", who is on death row in Pakistan for alleged spying.
She flayed Pakistan for presenting the two women as "widows" during the meeting, and accused Islamabad of turning an emotional moment into "an instrument to further its propaganda."
She pointed out that Mr Jadhav's mother and wife were forced to remove their mangalsutra, bindi and bangles and footwear, and even made to change their attire on the pretext of security.