In a development that took many in Mumbai by surprise, Prime Minister Narendra Modi's wife Jashodaben on Friday joined members of an NGO on a day-long token hunger strike in support of slum dwellers here.

Jashodaben -- whose arrival was not known even to the local police -- was flanked by five National Security Guard commandos as she joined 'Good Samaritan Mission' non-governmental organisation's volunteers to demand a halt to demolitions of slums in Mumbai during the monsoon.