The Brooklyn man who intentionally left his gal pal to burn to death in a fiery crash while he calmly hailed a cab has been slapped with murder charges, authorities said Thursday.

Draped in a hospital gown, Saeed Ahmad, 23, appeared in Brooklyn Supreme Court, where he pleaded not guilty to charges of second-degree murder, second-degree vehicular manslaughter, leaving the scene of an accident, driving while intoxicated and other crimes.

Healing burns were visible on his neck and arms, and a bandage could be seen peeking out from his upper inner arm.

Ahmad was held without bail, and special medical attention was ordered by Judge Neil Firetog. He is scheduled to return to court Jan. 12 and faces up 25 years behind bars if convicted.

He is accused of leaving Harleen Grewal, 25, to die after he lost control of his Infiniti G35 sedan in Red Hook earlier this month.

Ahmad, who has been hospitalized since the incident, previously was charged with criminally negligent homicide, leaving the scene of an accident, aggravated unlicensed operation of a vehicle and speeding.

Ahmad’s younger brother has called the man a “hero.”

“He tried to get her out,” Waheed Ahmad, 21, previously told The Post. “That’s how his hands and his legs and his neck got burned. He couldn’t get her out. The fire got too crazy. It just burned so quick.”

Video obtained by ABC 7 shows the blaze engulfing the vehicle as a man walks toward a waiting taxi.

“Can I get a ride?” he can be heard asking the cabbie before he gets inside and is driven away.

“This defendant’s alleged actions before and after crashing his car caused the death of a vibrant young woman who had her entire life ahead of her,” Acting Brooklyn District Attorney Eric Gonzalez said in a statement. “He showed complete disregard for human life and for the safety of everyone using our roadways.”