Dua: Importance, etiquette, best time and place(Bangla)

Dua is a great act of worship. Allah SWT said: " ادْعُونِي أَسْتَجِبْ لَكُمْ Call upon Me; I will respond to you.তোমরা আমাকে ডাক, আমি সাড়া দেব". Rasulullah SAW said:" الدُّعَاءُ هُوَ الْعِبَادَةُ The supplication is the worship. দুআ হল ইবাদত". Dua is great resource everyone possess, but we take it lightly and do not use it properly. Like any act of worship dua has its etiquette, manner, best time and place. We must know how to ask Allah our Lord.