NEW DELHI, Dec. 4—Indian officials said today that they had mounted a major offensive to overrun East Pakistan while Indian forces fought to contain two major ground attacks from West Pakistan.

The Indian Parliament, in a special meeting, enthusiastically, approved of Prime Minister Indira Gandhi's military action against Pakistan and gave her emergency powers.

India and Pakistan made conflicting and optimistic statements about the fighting. How ever, a pattern could be discerned from the reports:

(Manes of both nations struck repeatedly in an attempt to cripple enemy air strength and gain air superiority. In the east, India seemed to be close to that goal. In the west, neither air force seemed to be critically hurt.

The Indian strategy on the ground was to concentrate first on the conquest of East Pakistan and to sever it politically and permanently from the West.

Along the West Pakistan border, Indian forces for the time being were apparently, trying to contain Pakistani forces. India admitted losing “some ground” in a Pakistani assault on the Punjab border near Ferezepore and Hussaini wala. In the southern area of Kashmir a Pakistani attack— probably aimed at cutting the Kashmir highway—had been withstood, Indian spokesmen said.

[An Indian official said Sunday that the Indian Navy had sunk a Pakistan destroyer off Karachi, Reuters reported.]

The war, the third in 24 years between the two neighbors, grew out of a rebellion by East Pakistan citizens against the western‐dominated military Government of Pakistan.

In the last two weeks Indian support of the guerrillas in East Pakistan has been expanded to include localized but sizable penetration of East Pakistan by Indian regular forces.

The war expanded yesterday to the West Pakistan border. India charges that Pakistan began the new phase with coordinated and repeated air strikes on Indian airfields and with ground thrusts.

Pakistan charges that India began the western fighting with, major ground assaults.

Indian spokesmen said to night that in 24 hours of combat 19 Pakistani warplanes had been destroyed in the west and 14 in the East. They said that only a few Pakistani F‐86 Sabre jets were still operating in the east.

India said she had lost six war planes in the west and five in the east. Because she had under taken many daylight attacks on “heavily defended” Pakistani air bases, a spokesman said, these losses “should be considered moderate.”

“I can tell you that no holds are barred,” said a senior Indian official. “Since the early hours of this morning Indian forces have been and are being inducted into Bangla Desh [the Indian and guerrilla name for East Pakistan.]”

He said Indian commanders had been “instructed to move in and to establish contact with and act in concert with” the guerrillas.

Lieut. Gen. Ajit Singh Aurora, commander of India's eastern forces, said his aim was to force complete surrender of Pakistani forces in East Pakistan.

In New Delhi the senior official said that it was correct to assume that India's plan was to stage a major offensive in the east while containing enemy attacks from West Pakistan.

Indian officials made un mistakably clear in private and in public that they would bitterly resist and probably refuse to honor any call for a cease fire by the United Nations or individual powers until Pakistani control of the eastern province had crumbled.

A senior diplomat said, “We have no design on any part” of West Pakistan, indicating that India's aim was not total subjugation of Pakistan.

Kashmir, which has been in dispute between the two nations since partition in 1947, is considered by New Delhi to be an “integral” part of India. Any gains the Indians make there they may try to keep, and Pakistan would certainly take the same attitude.

Although brisk and even “fierce” fighting was reported in some areas of East Pakistan, it was clear that the full weight of the Indian offensive had not yet been felt General Aurora conceded to correspondents in Calcutta that Indian forces that had been dispersed in a horse shoe‐shape formation around East Pakistan had to be re deployed in concentrated large offensive formations.

The Indians already outnumber the Pakistani by about seven divisions to four in the East Pakistani area and Indian reinforcements are likely.

Because East Pakistan is interlaced with hundreds of rivers, the Indians are not likely to be able to move rapidly, observers said. However, this problem may be offset by the fact that Pakistan may not be able to resupply her East Pakistan garrison.

Also, if Indian reports are correct, Pakistani troops may soon be without air cover. India said that in a series of strikes on airfields and in aerial combat today her planes destroyed 10 Sabre jets. India lost five planes believed to be Hunters, reports said.

Defense Minister Jagjivan Ram told the Indian Parliament this afternoon that about a brigade (about 2,900 men) of Pakistani infantrymen, supported by planes, tanks and artillery, “are attacking our troops in the area of Hussainiwala and Ferezpore” in the Punjab.

He said that India had inflicted heavy casualties on the enemy, but that “we have also had casualties and lost some ground.”

Mr. Ram said that Pakistani troops “in great strength supported by armor and artillery are engaged in severe fighting 30 miles west of Aknoor [an Indian town in the Jammu region].”

“We have already inflicted heavy casualties, including six enemy tanks which were seen burning,” he said.

In the 1965 war, Pakistan at tacked in this same area and drove to within six miles of Aknoor. The aim then —and probably now — was to seize the town of Jammu and cut the vital highway from the Punjab to the Vale of Kashmir.

Lieut. Gen. K. P. Candeth, the commander in the west, said at Jullundur that a total of 12 Pakistani tanks had been knocked out along the western front.

“We were on the defensive yesterday but gave heavy blows to the enemy,” he said.

He said there had also been “severe” attacks in the Poonch area of Kashmir. He called the attack in the Punjab near Hussainiwala “massive.”

New Delhi and other North Indian cities are blacked out. At 6:50 P.M. sirens wailed an air alert in New Delhi when two Pakistani jets were report ed to have flown toward Palam, Airport. India said her Air Force chased off the enemy planes.

India has not formally declared war on Pakistan but Mrs. Gandhi has called the fighting a “full‐scale war.”

Parliament today quickly passed the Defense of India Bill, giving the Government and Mrs. Gandhi sweeping emergency powers, including the right to detain suspected subversives for up to two years.

In normal times, opposition parties always fought Government moves for emergency powers, saying that they would be used by the ruling party to its own advantage.

Today, the Opposition demanded a time limit for the rules, made the Government promise that it would not retain the special powers, “even a day longer than needed.”

India announced that her small navy was instituting “contraband control” and would stop neutral merchant ships to search for war materiel con signed to Pakistan. Any such ships would be sent to an Indian port under escort, spokesman said.

The Indian Navy, which includes a small aircraft carrier, attacked the East Pakistani ports of Chittagong and Cox's Bazaar today, the spokesman said.

Carrier‐launched aircraft were said to have sunk two Pakistani gunboats at Chittagong and to have hit hangars and a fuel dump.

The Pakistani merchant ship Pansi was stopped and seized this morning in the Arabian Sea, India said.

Pakistan reported destroying 26 Indian aircraft so far. India has conceded the loss of 11. Indian officials said all the planes were lost to ground fire while attacking Pakistani military airfields. The Indians asserted they lost planes on the ground in the first Pakistani raids at dusk yesterday, even though “we were surprised by the timing.”