Hello Ashwin,
In workbench meshing Please go to the details of mesh . In that please select inflation layers add the first cell height with a small value or calculated value and also reduce the number of layers . Also first use face sizing and create a seperate region in which then specify the first cell height thickness method in inflation and do it. Keep it program controlled and create named selection then right click insert inflation (programmed inflation included )
This should help you.
Thanks,
Chaitanya Natraj