i-129

[Karizma5]

Status: Approved H-1B with same employer valid till 10/10/18 
Change in Job duties, Change in Job Title, Change in Salary 
Now Filing H-1B extension 

Question: 
Part2: Basis for classification, In I-129 petition. 
Option to choose 
C. Change in previously approved employment without change with the same employer 
or 
F. Amended petition

any one have an idea ?

[JoeF]

The employer or his lawyer have to handle that. You need to stay out of it (as you were told on another forum.)

You getting involved in it can result in  denial.