Erstwhile Papannapet Samsthanam covered almost entire undivided Medak district.

In the history it was said as part of Andhol Rajyam with 24 paraganas and was ruled by the princess Rai Bagan Maharani Shankaramma, daughter of Sanga Reddy and Rajamma.

The ruler of Papannapet Samsthanam Ramadurga Venkata Narasimha Reddy (1720-1760) married her for her bravery.

After the demise of Raja Narasimha Reddy in 1760, the power of Samsthanam went to in to the hands of Rani Lingayamma II (1760–64) with the prevailing political situations.

When Peshwa of Maratha Empire invaded Nizam's territory, Rani Shankaramma countered them, for which she was honoured with Rai Bagan (Royal Tigress) title and was restored to power as Rani of Samsthanam in 1764.

She adopted Sadashiva Reddy who married Parvathi Devi, daughter of Gadwal Samsthanam ruler Somanatha Bhupala.

Papannapet Samsthanam, which was already in legal disputes by the early 20th century after the death of Raja Durga Reddy was merged into Hyderabad State in 1948, during the rule of Raja Ramachandra Reddy Bahadur.

She was credited with agricultural development such as constructing ponds and was regarded as a social reformer for her acts of making Neerudi Papanna, a dalit as commander.

Historians such as B.N.Shastri said that Papannapet Samsthanam history is clearly recorded from the rule of Rani Shankaramma.

Mudunga Ranga Krishnamacharyulu wrote "Andhol-Jogipet"(2006–07) and "Shauryaveerya Reddy Thrayam" (2012) describing the Samsthanam.

[7] There is famous Edupayala Vana Durga Bhavani temple at Nagasanpalli Vby Mandal Papannapet.

The temple maintenance was under family members of Peddalachannagari's under Nizam's rule and now it is under Endowment of the Telangana Government.