By. R. HART PHILLIPS

Special to The New York Times.

HAVANA, Oct. 25--General elections will be held in Cuba Nov. 3 in an unusual electoral situation that includes suspension of constitutional guarantees and censorship of press and radio.  Furthermore, the armed forces have supreme power in the republic.

It is hoped to elect "a constitutional President" under these conditions.

In the three eastern provinces of Oriente, Camaguey and Las Villas the forces of Fidel Castro, the rebel leader, and the Government troops are fighting.

The rebels have declared that "at all costs" they will prevent the elections, which they have termed a "farce."

The railway service is suspended in most of Oriente Province and in many parts of Camaguey.

Government troops are braced in the rest of the island for acts of terrorism and sabotage against property, transportation and communications and attacks on Army posts.

At least three candidates of the Government's four-party coalition have been killed by the rebels in Oriente Province and Senor Castro recently issued a "law" in which he declared that all candidates would be disqualified for elective or appointive posts for the next thirty years when he overthrows the regime of President Fulgencio Batista.

Meanwhile President Batista has declared that "no one but God" can stop the polling.  The Government candidate, backed by a four-party coalition, is Dr. Andres Rivero Aguero.

Three opposition parties have nominated Presidential candidates: the Cuban Revolutionary party, otherwise known as the Authentic party, whose candidate is former President Ramon Grau San Martin; the Free People's part, which is supporting Dr. Carlos Marquez Sterling, and the Cuban Union party, a small group whose candidate is a newspaper publisher, Alberto Salas Amaro, who founded the party recently.  Senor Salas formerly was a friend of President Batista.

The former President Grau San Martin has declared that he believes the people will go to the polls despite the threats of the rebels since elections "are the only solution to the present state of civil war in Cuba."

However, he added that the elections are being held "under a hail of bullets and without guarantees."  Dr. Marquez Sterling has appealed to his followers to cast their votes but has also complained that the campaign has been carried out "under incredible conditions."

The campaign has been confined largely to television appearances weekly by the opposition and government candidates.  Small meetings have been held by all the parties in various districts of the islands after permission had been obtained from the military authorities.

All elective posts in the island are up for decision.  To be chosen are the President, six Governors of provinces, seventy-two Senators, 166 Representatives, 126 Mayors and about 1,800 Aldermen.

The Government does not have sufficient troops to protect the 8,263 voting precincts in the island since the greater part of the armed forces is engaged in fighting the rebels.  For this reason fifteen to twenty voting precincts have been consolidated into one building.  Even in Havana this consolidation of precincts has been carried out.

Dr. Grau San Martin and Dr. Marquez Sterling have asked for observers from the Organization of American States to insure, as Dr. Grau San Martin said, "that the votes are counted."  The Batista Government has forwarded a request for observers to the United Nations but so far there has been no reply.  Both Dr. Grau San Martin and Dr. Marquez Sterling prefer observers from the Organization of American States.

In a personal broadcast last night from his Sierra Maestra mountain stronghold in Oriente Province, Senor Castro assured the Cuban people that no attack would be made on Havana or Santiago de Cuba, or any other town on election day.

He said it would be poor military tactics to pick that day for action.