1. Junagarh Rock inscription
The Junagarh Rock inscription of Rudradaman is considered as an early example of chaste Sanskrit, written in mid second century AD. It mentions that one of Chandragupta Maurya’s governors, Pushya Gupta, was responsible for building a dam on Sudarshana Lake near Girnar in Kathiawar. From another inscription of Skandagupta we came to know that this very dam was repaired during his reign, almost 800 years after it was built.
2. Mehrauli Inscription / Garuda Pillar
The Mehrauli Iron Pillar was originally placed on a hill near the Beas and was brought to Delhi by a King of Delhi. This pillar credits Chandragupta with conquest of the Vanga Countries by his battling alone against the confederacy of the enemies united against him. It also credits him for conquest of Vakatakas in a fight that ran across seven mouths of Sindhu. This pillar was established by Chandragupta-II of Gupta dynasty as Vishnupada in the honor of Lord Vishnu.
3. Allahabad Pillar Inscription (Prayag Prashasti)
This was issued by Samudragupta and was composed by Harisena. It is written in very simple and refined Sanskrit in Champu kavya style. It lists achievements of Samudragupta. This Inscription is a eulogy of Samudragupta and mentions about the conquests of Samudragupta and boundaries of the Gupta Empire. As per this inscription, Samudragupta defeated 9 kings in North, 12 Kings in South, reduced all the Atavaka states to vassalage. It also mentions that more than five states in the frontier states surrendered and accepted his suzerainty. He had close contact with the kingdom of Ceylon and Southeast Asian colonies. The eulogy of Harisena describes him as hero of 100 battles. He performed Ashvamedha Yajna, this has been testified by a seal of Samudragupta bearing a Horse. This was probably first Ashvamedha after Pushyamitra Shunga. He is depicted in his coins playing Veena. He allowed the king of Ceylon to build a monastery at Bodhgaya. Another term used by Harisena for him is Kaviraja, which testified him as a patron of poetic arts and a poet himself. Samudragupta also assumed the title of Vikramarka.
4. Nasik Inscription
The achievements of Gautamiputra Satakarni were mentioned in Nasik Inscription that were composed by his mother Gautami Balasri. The Nasik Prasasti describes Gautamiputra as the ruler of the Aparanta, Anupa, Saurashtra, Kukura, Akara and Avanti and defeated the Saka King Nahapana and restored the prestige of his dynasty by reconquering a large part of the former dominions of the Satavahanas.
5. Nanaghat Inscription
The Nasik and Nanaghat inscriptions are the major sources that gives detailed information about the Satavahana empire. The Nasik inscription was made by Gautami Balasri and Nanaghat inscription was issued by Naganika.
6. Mandsaur Inscription
It was by Kumaragupta and was written by Vattasbhatta.