RRB PO, CLERK Hindi (हिन्दी) 2026 - 2027 LIVE Classes Recorded Class + PDF टॉपिक टेस्ट अध्यायवार प्रैक्टिस PDF Validity : 30 Jan, 2027 Those who have their active subscription of our Hindi Book, PDF and Test Course at Banking Books need not to pay full amount. Instead they can use code UPGRADE and get this course at much lower price Please ensure you are using Windows 10 or above operating system, as our classes/videos are supported on only those platforms. For best experience, use updated Android/iOS devices or Windows 10+ laptops Refund policy applicable as mentioned