There are several posts on this site related to Training Needs Analysis. You may click the following link to read one of those:
https://www.citehr.com/125103-traini...-analysis.html
Key Areas to Focus on for Training Needs Analysis
Secondly, for TNA, you may please concentrate on the following:
a) Customer Dissatisfaction
b) Operational failures
c) Report from Performance Appraisal of the employees
d) Organisational issues like conflict, etc.
e) Vision of your organization, like acquiring certification for ISO, Six Sigma, etc.
f) Career Planning and Succession Planning.
g) Inventory Carrying Cost of raw material and also of finished goods (if you are in the manufacturing sector).
In addition to this, earlier I had given a comprehensive reply on Training and Development. If you do the TNA in isolation, you may not be able to measure the effectiveness of training. The seeds of measurement of training effectiveness are sowed in TNA itself. To know how to do that, you may click the following link:
https://www.citehr.com/523786-traini...-523786-a.html
Thanks,
Dinesh Divekar