Should a low level employee train a new joiner at a company or should the manager do the training?

First of all, there should be a manual for training of new comers.

A newcomer to any organisation may require training in different aspects and skills according to his profile and company training manual. He has to get training from various level of employees of that company as per the profession he is joined for. If he has to perform the task of a low level employee, it would be better to have trained him by the same employee unless there any relevant personnel are not there or the manager is confident that the low level employee is the best to do that task.

Despite the low level of any employee, he may have various skills as per his knowledge and experience.

So, a low level employee can do the training, if he is talented enough and is allowed as per company strategies 

Thanks for invitation,

Older staff has to couch the new ones under the supervision of sections heads. 

Training is totally depend on the topic on which he has to be trained, if its on SOP then manager is the rite contender to give the training as he is aware of all the SOP thoroughly.  

Thanks for inviting me to answer this good question, well, to tell the truth it is always better that the immediate boss should himself train the new hiring, because a junior is always a junior, no matter, how much experienced he is. The reason every body has a different level of learning and some people are more focused on learning how a process works, rather then what lies behind the scene that is why do it?

So, it is always more fruitful if a manger himself trains subordinates.

the low level employee's tasks is closer to tasks of new joiner, so the best training to the new joiner will be by low level employee.

However the manager will follow up them, the manager training will be the next step for both of them

Low level employee is doing something the new joiner will be doing. So he will be best to train him. However a managers job is to manage if the training is going good. The managers job is very different from what the new joiner will be doing, manager will be able to train... but a low level employee will be able to make him an expert. Along with that the manager will also know about the calibre of the low level employee so that at any given point the manager can trust him

Yes, but manager also followup both low level trainee and new joiner.

Manager supervise, employees carry out technically. thank you

Only a professional can trained well to a new joiner. Manager has a different role in any organization.

Training is a profession and a Trainer must be a professional who specializes at it. Who should deliver the training - this depends on the type of training to be conducted. If we are talking about a functional training, then the manager may be a good choice as he knows the subject better. However, if it is - let's say - a Soft Skill course - then a Soft Skill Trainer must conduct it!

Low level employee should be invited by Manager to train new hire.