Kālidāsa
The most popular theory is that Kalidasa flourished during the reign of Chandragupta II, and therefore lived around 4th-5th century CE. Several Western scholars have supported this theory, since the days of William Jones and A. B. Keith. Many Indian scholars, such as Vasudev Vishnu Mirashi and Ram Gupta, also place Kalidasa in this period. According to this theory, his career might have extended to the reign of Kumaragupta I (r. 414 – 455 CE), and possibly, to that of Skandagupta (r. 455 – 467 CE).
Kannadasan
Kannadasan (24 June 1927 – 17 October 1981) was an Indian poet and lyricist, heralded as one of the greatest and most important lyricists in India. Frequently called Kaviarasu or Kavirajar ("King of Poets"), Kannadasan was most familiar for his song lyrics in Tamil films and contributed around 5000 film lyrics apart from 6000 poems and 232 books, including novels, epics, plays, essays, his most popular being the 10-part religious essay on Hinduism, "Artthamulla Indhumatham" ("Meaningful Hindu Religion"). He won the Sahitya Akademi Award for his novel "Cheraman Kadali" in the year 1980 and was the first to receive the National Film Award for Best Lyrics, given in 1969 for the film "Kuzhanthaikkaga".