<span style="color: #222222;">Kartik Purnima is a Hindu, Sikh and Jain cultural festival, celebrated on the Purnima (full moon) day or the fifteenth lunar day of Kartik. It is also known as Tripuri Purnima or Tripurari Purnima. It is sometimes called Deva-Diwali or Deva-Deepawali, the festival of lights of the gods.</span><br />'' <span style="color: #222222;"><br />'' Karthika Deepam is a related festival being celebrated in Tamil Nadu today it is celebrated as Sarvalaya Deepam and tomorrow as  Thiruvannamalai Deepam. Sri Annamalaiar Hill is considered as Lord Shiva's great presence in Thiruvannamalai. People believe that the huge light lit in the vening will make people close with Lord Shiva on Kathigai Deepam. Lord Shiva is rigidly worshipped during this time. It is celebrated as Tripurasura was killed on the day. The overjoyed Gods celebrated the day of Kartik Purnima as Diwali and paid obeisance to Lord Shiva's triumph over the demons. Kartik month holds immense importance to Hindus as it is the only month which is dedicated to the worship of both Lord Shiva and Lord Vishnu. On this day Guru Nanak Dev, the founder of the Sikh faith was born.</span><br />'' <span style="color: #222222;"><br />''  A report<br />''<br />''Tripuri Purnima or Tripurari Purnima derives its name from Tripurari – the foe of the demon Tripurasura. In some legends of Kartik Purnima, the term is used to denote the three demon sons of T?rak?sura. Tripurari is an epithet of God Shiva. Shiva in his form as Tripurantaka  killed Tripurasura on this day. Tripurasura had conquered the whole world and defeated the gods and also created three cities in space, together called 'Tripura'. The killing of the demons and destruction of their cities with a single arrow by Shiva overjoyed the gods and they declared the day as a festival of illuminations. This day is also called 'Dev-Diwali'-the Diwali of the Gods. </span>