tds on salary

Hi!! friends

I am serving in a leading organisation at Chennai . My immediate boss , who is also the key personnel,to whom I dont want to disclose about my housing loan etc. At the same time I dont want to loose the concession given in the Income tax on the housing loan. Shall I leave the employer to deduct tax on my income and later can I claim the same in my Tax return while filing. Or should I to disclose everything to my employer? Pl.give authenticated reply.