The correct option is 1 i.e Taj Mahal. Pietra dura, the inlay technique of architecture can be found in Taj Mahal. Pietra dura also called as "parchin kari", is a term for the inlay technique of using cut and fitted, highly polished colored stones to create images.

Lala Lajpat Rai was popularly known as "Punjab Kesari" or "Sher-e-Punjab".

The Jains claim their religion to be eternal, and consider Rishabhanatha the founder in the present time-cycle, who lived for 8,400,000 purva years. Rishabhanatha is the first tirthankar among the 24 Tirthankaras who is considered mythical figure by modern day historians, based on loose supports.

Chand Bibi is best known for defending Ahmednagar against the Mughal forces of Emperor Akbar in 1595.

The Ajanta cave paintings mostly belong to the period of the Guptas. There are only two known examples of cave paintings of the the Gupta period in ancient India. One of these is paintings of Ajanta caves.

Muhammad- bin - Tughluq was a brilliant scholar. He was a knowledgeable person and well versed in astronomy, poetry, philosophy, logic, medicine, physical science, and mathematics.

The famous work "Prithviraj Raso" was written by Chand Bardai, in hindi. It was written in Braj Bhasha. An epic poem, it demonstrates the life and contributions of the 12th century king, Prithviraj Chauhan.