Because congress is not used to give respect to President since India got independent. They enjoyed unlimited power for many years, persidents were made to respect PM and cabintate rather. Thats why the infamous word "Rubber Stamp persident" came in to picture. Now scenario is changed, Kalam is the first non-politically affiliated president (Kudos to NDA and Vajpayee for this gift to nation), he is not subscribing petty political moves of the ruling UPA/Congress so this arrogant alliance and their leading party would definitely try to undermine the stature of president. Unless people shatter the arrongance of these bunch of idiots, they will continue in disrespecting President and harming the democratic fabric of the nation.