निम्नलिखित में से कौन सा प्रसिद्ध विद्वान और इतिहासकार महमूद गजनवी के साथ भारत आया था?

Who built the Shahi (Royal) road during his rule, which was later renovated and renamed the Grand Trunk Road by the British?

In which year was the Bahmani Sultanate established?

The 'Alai Darwaza', the entrance gate of Qutub Minar, was constructed during whose reign?