Hi my name is rohil and I am from goa currently working in dubai
I would like to apply for the portuguese passport from dubai is it possible
And what are the documents required for the same

Unless your mother was born in any Portuguese Province you cannot apply to a Portuguese passprt. If so, then you supply your birth cert. with you mother listed and where she was bor within Portugal (or province) and submit it either on line or by mail to the Portuguese Consulate.

Both mom and dad born in goa
What all documents are required

This is what you have to do, from wikipedia:

All citizens of Portugal are entitled to a Portuguese passport. In Portugal, applications for a Portuguese passport need to be made in person in particular Civil Registries or Departments of Citizen Cards (one or more existing in every Portuguese parish) or in a Loja do Cidadão (in the Azores, RIAC - Rede Integrada de Apoio ao Cidadão) (English: Citizen's Assistance Centers.) Overseas applications need to be made in person at a consular authority (i.e. embassy, consulate-general, or consulate).

In order to apply for a passport, an individual needs to provide proof of citizenship i.e. with a valid Bilhete de Identidade or a valid Cartão de Cidadão. Consular authorities may require other pieces of identification (i.e. expired passports) as required by local law. Currently no photograph is required, as a digital photograph is taken at the time of the application.