Delivery schedule of all the reputed couriers is highly affected in this post-lockdown period. New areas are being declared as containment zones every day. Public transportation is not available in many cities yet. Moreover, kindly remember that a courier has to move through a lot of Hub areas. So even if the destination, the area from where you placed the order, is normal, the delivery could still be delayed depending on the condition of the transit Hub areas.
Hence, delivery of your books may take much longer time than the normal delivery time commitment. Please do bear with us if the unintended delay occurs.