need help in my query

friends,

for A/y.2009-10. I had Submitted a return.. but INCOME TAX authorities had sended a decredited in NSDmand notice that have to pay Rs.10,000/- as no TDS is credited as per NSDL.. as he is a salried employee his employer has alreasdy deducted tax on paying the salary income..But as per the reason of not crdited inNSDL a/c. they had rendered the demand notice.. Now what is my position.. How should i rectify this one..