ISLAMABAD, Pakistan — A Pakistani Hindu man has been charged with blasphemy against Islam, in the latest case under a controversial law that critics say has been used to persecute and marginalize religious minorities.

Ramesh Kumar Malhi, a veterinarian in the district of Mirpur Khas in the southern province of Sindh, was arrested on Monday and charged with blasphemy after a cleric said he had delivered medicine wrapped in verses from the Quran. Conviction under Pakistan’s blasphemy law carries a sentence of death.

After news of the arrest, riots broke out in the Phuladiyon neighborhood, where Mr. Malhi lives, and protesters burned shops belonging to Hindus.

The police said on Thursday that six people had been arrested and that the situation had returned to normal. Mr. Malhi is now in judicial custody.