Very useful.

Thanks a lot NCTEL team.......... You all are doing great job....... Very usefull video for quality control lab engineers ....thanks sir

Thank you, you managed to make very clear, keep it up.

Explained very clearly. Thank you.

Very nice and informative.It will help immensely to all civil engineers.Thank you.

very useful for civil Engineering

So interesting and well elaborated video

So useful sir...... I used to prepare for my external exam😇

Worth watching...u r providing quality plus class 💯

clear and understandable video ...thank you ,god bless you

The person doing here has a different fan base and maintaining secretly....💗💗

thank you so much,it was so helpful for my lab

Very beautiful and informative video. Thanks a lot sir.

thank you so much sir this video is helpful for my exam preparation..

Thank you for this video.😊

Excellent videos , need more such videos

Thanks a lot, this video is very useful for quality lab engineer.

i fully understood after watching the video . thank you so much sir

Very very clear video explaining completely ...

I cant explain my respect and love for indian tallent