What kind of ritual is performed on the second year after death

It'll soon be a second anniversary of my dad's death. I'm talking with my cousin who lives in Afghanistan using google translate and he told me that they will hold a prayer on that day. I was hoping to learn more about the significance of ritual. Here's how he describes it in Farsi: >در افعانستان هر سال ختم قرآن می‌شود به خاطری شخصی که فوت کرده باشد . باز ملا مسجد و چند نفر میاید ختم قرار می‌کند ثواب اش به مورده می‌رسد. یعنی به ماما ولی جانم برای پدر ات دعا می‌کند همه گی . در این جمع مادرم مام میباشد . خالیم شان میباشد . ماما هایم ام میباشد Google translates it to: >In Afghanistan, every year the Qur'an is completed because of the person who died. The Mosque and some people come to the end of the day and the reward will be paid to the case. I pray for your mother, but my father is praying for you. My mother is in this group. Empty is Sean. Mama is my mom. Which is leaves me scratching my head a little bit