How to solve issue occurred while using PLA material?

[guna 0]

Able to print brim but not the actual part. attaching images please have a look.

[Carbon 28]

Is the part touching the base in CURA?

 

Any RED faces show that it's "un-supported". So effectively printing in fresh air......

[guna 0]

yes it touches. 

[AndersK 59]

It looks like you have a clogged nozzle, do a hot & cold pull to clear it.

You'll find it under maintenance menu if I remember correct.