"This time people will vote for AAP which will win 28-32 seats in Goa (out of 40)," he said.
For the Congress party, Goa elections are an important opportunity to salvage its political fortunes which sunk to the lowest level during the 2012 state polls.
The MGP president claimed that the alliance has already been finalised and announcement is just a formality.
"If they do not offer money, go to their offices and ask for it. But, when it comes to voting, press the button against the name of the AAP candidate," he told an election rally in Benaulim constituency.
"We have had a meeting with Goa Police's Anti Narcotics Cell and Narcotics Control Bureau (NCB) who are keeping a close watch on drug peddling in the state," Goa’s Chief Electoral Officer Kunal told reporters on Saturday.
The official said the ECI guidelines have also cautioned the use of narcotics trade to induce voters or circulate money during upcoming state assembly polls.
Responding to a query, D'Souza said NCP should not be blamed if it fields candidates across the state in absence of alliance with Congress.
Gomes has been booked in connection with a land acquisition case along with a former minister in the Congress-led coalition government, Nilkanth Halarnkar.
Party's senior leaders are also considering whether to go for an alliance with like-minded forces in the state or not.
Senior leaders including Union ministers Rajnath Singh, Venkaiah Naidu, Nitin Gadkari and Smriti Irani, would hit the hustings in coming days.
After the announcement of its chief ministerial candidate Elvis Gomes, AAP has campaigned more optimistically in South Goa than in Hindu-dominated North Goa.