I think there is TTDC place in kanchipuram.. might not b very good but should be decent... if u r looking for a little higher end try GRT regency... As far as silks are concerned go to either anna cooperative society or babu sah... there will be lot of brokers who will misguide you... the cooperative society is in gandhi road.. they have collection of sarees from many weavers in kanchipuram and is genuine...