From where should I prepare for NRTI exam other than the sample paper available on internet
Hi Nishu,
For NRTI you can refer following books:
1.Aptitude: R S Agrawal. You can also go through sites like indiabix.
2.English: Wren and Martin, I think will be the best book for English. If you have ample time, please go through it once.
3.General Knowledge(Current Affairs): Most unpredictable thing I found in this exam. Depends on your prior knowledge. I found it mostly static GK from Geography. I But if you want to prepare it too, study Indian Express and some updated Yooutube videos will be helpful.
4.Mathematics: Nothing too hard in Mathematics, just the basic knowledge upto 10 class will be enough to crack this exam.
Hope it helps,
All the best!