Hello Anupranjan, 

CA is one of the hardest profession to get into and yes its papers have a very good difficulty level. It is one of the hardest exam in India. 

But don't worry its not at all impossible. You can easily crack it with just some hard work. So you need to have all your basics very clear and build the rest course strong. With hard work you may easily creck this exam.

Hope this helps, Thank You 

All the best 

Hello Anu,
Few students clears it in very first attempt whereas few students takes up to 7 years to clear it. However, it is still considered as tough examination but if you have proper direction and dedication for this, then you can clear it easily. Without hard work, it is impossible to clear it.
Good Luck.