From the extant literary descriptions , from the sculptural representations in relief , and from the few excavated relics -LRB- as , for example , the circular shrine at Bairat , others at Nagarjunakonda and Salihundam , and the standing ones in Chejerla and Ter in Andhra and western Decccan -RRB- , one can infer that the roofs of these brick-and-timber structures were either supported on their pillars , the intervening space being covered by screen walls , or they were raised totally on their walls with the pillars , if any , represented only as ornamental pilasters externally . साहित्यिक विवरणों तथा मूर्तिकला के साक्ष्यों तथा कुछेक उत्खनित अवशेषों से ( उदाहरणार्थ-बैराट के वृत्ताकार मंदिर , नागार्जुनकोंडा तथा शालिहुंडम के मंदिर तथा पश्चिम दक्षिणावर्त तथा आंध्र के चेजेरना और तेर के मंदिर ) यह स्पष्ट पता चलता है कि इन छत वाली संरचनाओं की छतें स्तंभों पर आधारित होती थीं तथा बीच का भाग जालीदार सज़्जा से भर दिया जाता था .