Recently which of these states has signed an MOU with Hyperloop Transportation Technologies HTT for ...........

Explanation:

India's first Hyperloop project will come up in Andhra Pradesh, connecting its city centres, Vijayawada and Amaravati.
It will use a Public Private Partnership (PPP) model with funding primarily from private investors.
The proposed hyperloop will cover 35 km distance between Vijayawada and Amaravati only in five minutes.
Learning: Hyperloop Technology is brainchild idea of Elon Musk. It is system of magnetically levitating capsules (pods) that are sent at high speeds through low-pressure tubes.
It envisages tube modular transport system that runs free of friction. It is still in trial stages in different countries and not been implemented for practical use anywhere in world yet.