Sunita's housewarming is on the circled date. Which of these dates later that year falls on the same weekday as the housewarming?

This February has 28 days = exactly 4 weeks, so 3 March is the same weekday as 3 February: Saturday. 3 April is 31 days on (+3), 3 May is +5 and 3 June is +1 from 3 March, so none of them is a Saturday.