ASP.NET - sometime in my database include htmltags </title>.ac71{position:a so my site down

Asked By rashmi on 08-Mar-13 01:11 AM
sometime in my database include htmltags so my site down .
for example
in my database table loction
INSERT [dbo].[location] ([locid], [locname]) VALUES (32, N'Rudrapur)
but after sometime it show
INSERT [dbo].[location] ([locid], [locname]) VALUES (32, N'Rudrapur</title><style>.ac71{position:absolute;clip:rect(484px,auto,auto,484px);}</style><div class=ac71>guaranteed <a href=http://krispaydayloans.com >payday loans</a></div>')
that's why my site not working properly,and  i don't know how  this data come
</title><style>.ac71{position:absolute;clip:rect(484px,auto,auto,484px);}</style><div class=ac71>guaranteed <a href=http://krispaydayloans.com >payday loans</a></div>
if anybody know plz help me.