Dear Nidhi,
I beg to differ with Anuradha. What matters is trainer's ability to increase revenue. Everything else is secondary.
I have come across with trainers who are very poor in the parameters mentioned by Anuradha but because of their training business increased. So what is important to you - revenue or body language of the trainer, please decide.
Newcomers concentrate on secondary aspects leaving aside business aspects. There were situations wherein all the participants gave "Excellent" feedback on all the parameters of the feedback form. But hardly their training could add any rupee in the balance sheet because there was no change in methods of operations after the training.
Please remember good old proverb - a talking parrot flies little.
Effects of training depend on lot many factors - your management, organisation culture, HR/Training Department's interest, Competence of HR/Training personnel, interest of the participants and finally the trainer.
Competence of the HR/Training personnel matters lot to succeed training and not the trainer's ability. I have come across with HR/Training Directors who could not do Training Needs Analysis (TNA) of their organisation. How many HR /Training personnel are competent to formualte objectives of some training programme without taking help of Google?
Regards,
Dinesh V Divekar