While the engineer does not lead a lavish lifestyle, she spends money on expensive food items like dry fruits to boost immunity and health, since falling ill reduces her productivity to a very great extent.
The engineer consumes a large amount of raisins daily, blueberries and cranberries if available .
It appears that some powerful person try to grab the engineers savings is closely monitoring all the expenses of the engineer and has noted that raisins and dry fruits are a major expense.
A local pharmacy was selling raisins, blueberries and cranberries, after the shop stopped selling/stocking raisins.
Yet after purchasing the raisins, blueberries and cranberries a few times, now the pharmacy is closed the last few times the engineer visited it, showing how desperate a powerful person is in reducing her expenses.