Prosecutor Zoe Lee said Jagdev started shouting when the plane was unable to land the first time round and had to circle.
"The defendant screamed: 'We are all going to die'," she told the court. "The defendant's unruly behaviour directly brought about the stress which caused the mother of this girl to have a seizure on the flight.
"The family asked to be moved and were accommodated. Jagdev was repeatedly spoken to by fellow passengers and cabin crew but did not calm down."
Mrs Lee said that Jagdev had had between six and eight beers before she boarded the plane then drank four to six glasses of wine on the fight.
"The cabin crew could see she was intoxicated and refused to serve her any more alcohol," she said.
"She was then seen to be drinking alcohol she had brought onto the plane herself."
At one point, an off-duty police officer on the plane offered to sit next to her for the rest of the flight to try to placate her.
Mrs Lee said: "To start with it sort of worked. Then she became flirtatious and he refused her advances. Then she became abusive and became much louder."
When the plane landed at East Midlands Airport police boarded the flight and arrested Jagdev.
She told police she said she had been in party mode and blamed the cabin crew for serving her alcohol. Jagdev, of Leicester, pleaded guilty to being drunk on an aircraft on January 28.
The prosecutor told the court how Jagdev had been convicted in a Spanish court of a violent offence and had received a suspended sentence while on holiday. That conviction came just five days before the flight to East Midlands Airport.
Mrs Lee said that Jagdev had previous convictions for alcohol-related offences and threatening behaviour.
Ahmed Khan, defending, said his client had an alcohol problem. He added that she had turned to alcohol when she lost an unborn child and split from her husband in 2015.
"She initially turned to drink then stopped," he said. "After stopping drinking she was able to save some money.
"She used this money to make improvements to her property and to treat herself to a holiday.
"She went on holiday and fell off the wagon. She is ashamed of what happened. She would like to apologise to everyone who was on that flight.
"My client clearly has an alcohol problem and needs help to tackle her issues."
District Judge Sally Fudge said: "I view this extremely seriously. By law I can only impose a financial penalty in this court for this offence.
"I feel that my sentencing powers are not sufficient to deal with this case."
Jagdev was given unconditional bail. She is due to be sentenced at Leicester Crown Court next month.
