Dear Consultant Brother,
If you understand the concept and meaning of CTC, you will never be confused.
CTC is cost to company and not a pay to employee. Suppose, you are a company / employer. You hire a service of mine. You will be spending on my employment in terms of salary and other benefits / perks etc. You will be also contributing to PF, Medical Insurance and other kinds of insurance, gratuity premium etc. on me and on other emplyees. All those expenses incurred by you on me and on other employees are construed as cost to you, i.e. CTC.
It is up to the employer what expense to be taken as CTC and what not. My advise to employers not to take expense towards premium paid for gratuity, medical insurance and other kinds of insuranc as CTC. Even some employers take costing of leave also as CTC for which I am not in favour. BUT I WILL NOT SAY THAT THEY ARE WRONG.