Yuvraj has got more marks than Shakti. Neha has got less marks than Anamika. Swapnil has got more marks than Adil. Yuvraj gets less marks than Adil. Anamika and Shakti has got equal marks. Aditya has got more marks than Adil but less than only one person in the group. Who has got the highest and lowest marks?

Yuvraj has got more marks than Shakti.

Yuvraj > Shakti    Eq.(i)

Neha has got less marks than Anamika.

Anamika > Neha    Eq.(ii)

Swapnil has got more marks than Adil. Yuvraj gets less marks than Adil.

Swapnil > Adil > Yuvraj    Eq.(iii)

 Anamika and Shakti has got equal marks.

Anamika = Shakti    Eq.(iv)

Combine Eq.(i), Eq.(ii), Eq.(iii) and Eq.(iv).

Swapnil > Adil > Yuvraj > Shakti = Anamika > Neha

Aditya has got more marks than Adil but less than only one person in the group.

Swapnil > Aditya > Adil > Yuvraj > Shakti = Anamika > Neha

Therefore, we got the final arrangement.

According to the above arrangement, Swapnil and Neha have got the highest and lowest marks respectively.