First attach the sleeves to the arm holes. For this, first fold the sleeve into half and mark the centre as shown. Then place the sleeve such that the centre of the sleeve and the shoulder joint coincides and the correct sides of the sleeve and top are facing each other. Stitch on the reverse side on the line marked. Similarly attach the other sleeve.
Then start stitching at the sides as shown and stop on reaching the starting pt of the opening and give a few back stitches. Similarly stitch the other side. Then double fold the extra cloth at the opening in the reverse side and stitch on the correct side as shown. Do the same thing on the other side also.