The Portuguese Consulate has been issuing Cartao de Cidadao (the new version of Bilhete de Identidade), The process is simpler and the Assistant Consul is very helpful.
Documents required to Apply for Cartao de Cidadao at the Portuguese Consulate in Goa are
1. Original or attested copy (attested by Portuguese Consulate) of your Indian Passport
2. Police Clearance Certificate (Valid for 12 months)
3. Residence Certificate ( No validity)
4. Two Picture's (Passport Size)
5. Copy of your Assento de Nascimento/Casamento
None of the documents have to attested by any of the authorities other than the issuing authority. The documents do not require the Portuguese translation if issued in English.