Hi Shubhi,

Yes, it is sufficient to crack IAS exam if complete devotion is shown in that 1 year period.

There are  many examples of students who have already done it and cracked in first attempt itself.

To have the good knowledge about UPSC syllabus, you can go through the link below.

https://competition.careers360.com/articles/upsc-ias-syllabus

You will have to give 6-8 hours daily for your preparation depending on your ability of easily you grasp things.

First and foremost you should have a proper knowledge about the exam and its pattern so for the first of your preparation your coaching will do the same.

Having said that I will give you some study tips for it.

• Cover most of the syllabus.
• Attempt mock test in time limits.
• A proper notes can give you edge in preparation.
• Do not explore new portion or topic before one month.
• Take CSAT seriously.
• Practice and analyze previous year question papers.
• Do not ignore Current affairs.

I hope it helps you.

To know about the exam pattern of UPSC, you can visit the link below.

https://competition.careers360.com/articles/upsc-ias-exam-pattern

All the very best!!