This is purely my opinion and should not be treated as a professional advice.
Services provided by an employee to employer are not considered as a supply of service.
So for purpose of GST, you need to consider only your consultancy services for Rs. 20 lakhs limit.
Since you are not crossing 20 lakhs, you need not to register under GST.
chatCommentsThank a ton. Much Appreciated. - Shim Palladan