The minister has also asked the Collector to clear the grant in 45 days.
The total cost of 13 ambulances is estimated to be about Rs 2.86 crore, according to the letter written by Prabhu to the district collector.
Each ambulance will have ventilator with advance life support system, oxygen cylinder, monitor, accessories and other requirements and is estimated to cost about Rs 22 lakh.
A Rajya Sabha MP can recommend works in one or more districts in the state from where he or she has been elected.
Prabhu was elected to the Rajya Sabha from Andhra Pradesh after his Upper House term from Haryana got over recently.