Namrita was found with a rope tied to her neck in her hostel room in Larkana, Sindh.
This comes a day after people vandalized properties including a temple in Ghotki after a school principal from the minority Hindu community was booked on charges of alleged blasphemy.
Voicing their anger against the Pakistani government, the protestors demanded justice for the deceased girl who was a final year student of Bachelor of Dental Surgery (BDS).
Many people in the crowd also carried placards and demanded the government to better the law and order situation in the region.
The girl was found lying on a cot on Tuesday with a piece of cloth tied to her neck while her room was locked from inside.
As per the authorities the girl committed suicide, while the family of the girl has asserted that she was murdered.
The incident comes at a time when the country is being sternly criticized for the rise in cases of forced conversion in the country.
Every year, around 1,000 young Sindhi Hindu girls between the age of 12 and 28 are abducted, forcibly married and converted to Islam, ANI reported citing US-based Sindhi Foundation.
The matter had raised a furore in India, with several political leaders across parties asking for action to be taken against the perpetrators.