In a mixing bowl, add the flour, baking soda, sugar and salt and mix well.
Add the oil and rub it into the flour mixture with your fingertips.
Add the milk and bring everything together till the dough does not stick to the hand. But do not over knead, or they will turn out really hard.
Transfer the dough to the rolling board and roll out to about 2 mms thick.
With a 2inch round cookie cutter, cut out circles and arrange on the prepared baking tray. I made around 50 of them. Of course, it will not be possible to cut out so many at one go. Just bring together the scrapings after cutting out the first batch, roll out again and repeat the process till the entire dough has been used up.
Place the tray in the centre of the pre heated oven and bake for 20-25 minutes or till the top browns lightly.
Remove the cookies from the oven and transfer them to a cooling rack. Cool completely before storing them in air tight containers.