From a record at Peravali dated A.D. 1411, Kolani Rachanna, son of Kolani Bhimanarya is known. Kolani Ramanna is heard of from another record also at Peravali dated A.D. 1417. It appears that Ramanna and Rachanna are identical, as the two records seem to be one as the cyclic year in bothhevilambi is same. Living in the 15th Century A.D, this Kolanu chief must have recognised the suzerainty of the Reddis of Rajahmundry, supreme in this period in the Telugu country.
One of the titles of Racherla family is Kolanivitiviraksha-trano Vijayapramada. The vipparla family had the title—Kolanipuramahipalakasirahkridavinoda. One of the epithets borne by the Alagucherla family is mridumakolanivirakshetranobharatikamalla, and the Dachurulla family had the title—Kolanimanniya talagonduganda. The names of the individuals of these family, who acquired victories over Kolanu and its rulers, and the time and circumstances, which brought about these results are not known. Probably during the conquest of Kolanu in the reign of Prataparudra of the Kakatiyas by Induluri Soma, mejmbers of the Racherla, the Vipparla, the blagacharla, and the Danchanulla families all feudatories of the Kakatiyas, accompanied him participated in the expedition and' assumed the epithets signifying their victory over Kolanuvidu i.e. Sarasipura and its rulers not known to us. As has been suggested already, the identification of Kolanividu with Kolanupaka ie. Kulpak in Nizam’s dominions is wrong. Kola-nuvidu is the viduie town built in the midst of Kolanu lake.