Dear Sum_786,
What is the nature of your industry? Are you from IT company? What is the size of your company? What is headcount?
Small companies can benchmark against the industry leaders. However, bench-marking is defined as evaluate (something) by comparison with a standard. Therefore, you may benchmark your company against TCS for attrition rate or other project evaluation metrics but you cannot benchmark for the HR policies as such. Just think for a while. If TCS were to conduct the employee engagement survey then will HR from that company approach on this forum or he/she will handle on his/her own?
The dynamics or the organisation culture of TCS will be completely different from yours. Are you at par with TCS's recruitment standards, training standards or any other standards? If not, then imitation may not work well.
Yes, conducting the employee engagement survey is important but it need not be benchmarked against TCS per se. Secondly, in your post, you have also referred about "critical thinking". Do you want to promote culture of critical thinking in your company? If yes, then you may do so but it has nothing to do with employee engagement as such. For further discussion, feel free to contact me.
Thanks,
Dinesh Divekar