What you copied out from the website is so far the requirement what the Embassy in Pakistan is asking for.
This does not grant you automatically a visa for Indonesia.
There is a special visa procedure to obtain a "calling visa" for 16 nationalities (including Pakistan) described below:
Apply for the visa at an Indonesian embassy abroad.
The embassy, having verified the application request, will send an official letter to Immigration in Jakarta requesting an immigration authorization approval letter, mentioning the supporting institution in Indonesia. Each application is marked with a reference number, which you can request.
The Immigration Office in Jakarta will verify the embassy’s request and invite the supporting institution to attend their weekly Clearance House meeting, held every Tuesday. The meeting is a for a full day, attended by representatives Intelligence (BIN), Immigration, BAIS, Police, Ministry of Foreign Affairs, Ministry of Home Affairs and Ministry of Justice.
The next day, the Minutes of the CH meeting will be forwarded to the Intelligence Section for approval (a one-day process).
The next day, Intelligence will forward the approved application to the visa section, who will then publish an authorization approval letter and send this letter to the Indonesian embassy where the request came from.
The Embassy will release the visa to the applicant.
Ahmedfraz was told by the Embassy that he needs a sponsor and I have not heard otherwise....