In contex of the brilliant achievements in the fields of literature during the Pallava period, the given headlines are explained as under: 

(a) Their patronage to literature: The Pallava rulers patronised Sanskrit scholars. Mahendravarman himself was a scholar and a musician. He wrote Prahasans (farces) – Mattavilasa and Dandin, who wrote Daskumaracharita and Kavyadarsha, lived in the court of Narasimhavarman II. Dinnaga Vatsayana the author of Nyayabhasya, was also associated with Kanchipuram, Sanskrit was the language of courts and men of literature, but Tamil became the vehicle for popular composition of devotional poetry. It received encouragement from the rulers. Perundevanar wrote Bharatam and a court-poet of King ; Nandivarman III composed Nandikalambalkam. 

(b) Contributions in the field of architecture: Many magnificent temples were built by the Pallava kings. Under the Pallava rulers; of Kanchipuram, two forms of temple-architecture were evolved in the South-—the rock-cut’and the structural shrinks. The rock-cut architecture includes two types of shrines—the Mandapas and the Rathas. Mandapas are open pavilions with one or more cells in the back-wall. This type of architecture is found in places like—Pallavaram, Trichinopoly and Dalavanur. Rathas are monolithic shrines. The best examples of monolithic shrines or Rathas are found at Mahabalipuram in Tamilnadu.