3:26 Say, “O Allah , Owner of Sovereignty, You give sovereignty to whom You will and You take sovereignty away from whom You will. You honor whom You will and You humble whom You will. In Your hand is [all] good. Indeed, You are over all things competent.
3:26

قُلِ اللَّهُمَّ مَالِكَ الْمُلْكِ تُؤْتِي الْمُلْكَ مَن تَشَاءُ وَتَنزِعُ الْمُلْكَ مِمَّن تَشَاءُ وَتُعِزُّ مَن تَشَاءُ وَتُذِلُّ مَن تَشَاءُ ۖ بِيَدِكَ الْخَيْرُ ۖ إِنَّكَ عَلَىٰ كُلِّ شَيْءٍ قَدِيرٌ

Sahih International

Say, “O Allah, Owner of Sovereignty, You give sovereignty to whom You will and You take sovereignty away from whom You will. You honor whom You will and You humble whom You will. In Your hand is [all] good. Indeed, You are over all things competent.

Bangla

বলুন ইয়া আল্লাহ! তুমিই সার্বভৌম শক্তির অধিকারী। তুমি যাকে ইচ্ছা রাজ্য দান কর এবং যার কাছ থেকে ইচ্ছা রাজ্য ছিনিয়ে নাও এবং যাকে ইচ্ছা সম্মান দান কর আর যাকে ইচ্ছা অপমানে পতিত কর। তোমারই হাতে রয়েছে যাবতীয় কল্যাণ। নিশ্চয়ই তুমি সর্ব বিষয়ে ক্ষমতাশীল।

My Comments:

O Muslims, after knowing this Ayah that belongs to the Quran that you believe in, how can you then be a part of democracy? How do you then vote, support and engage yourself in talk and discussion about democracy? When you do, you agree that ‘people are sovereign’, you put yourself in a clear kufr. That’s the full stop if you fear Allah, if you fear Jahannam.
Don’t let any other ‘but’ or ‘if’ come into your mind, because that’s from shayateen. And he is working. So, whatever you do from praying Tahajjud, going to Hajj, doing Sadaqa, engaging vigorously in Dawah work, but you are engaging in democracy because you have a fatwa from ‘your Ulema’, know that shaitan has promised Allah to take son of Adam alihi wa sallam to Jahannam and he just needs one slightest disobedience from you, the slightest chance of shirk or kufr.  So, do not feed yourself by all those ‘reasons’ why you engaging in democracy, what ‘intention’ you have etc. Disassociate yourself from democracy today. And Allah knows best.
Imagine if Jahannam is displayed in front of you in the sky, I am sure, you won’t do a thing that could cause the slightest possibility for entering Jahannam. I seek refuse with Allah from Jahannam. May Allah protect us from Jahannam.