Solutions
Row-1 (North): A, B, C, D, E
Row-2 (South): P, Q, R, S, T
Biscuits: Hide & Seek, Oreo, Parle G, Marie Gold, Bourbon, Butter bite, Sun feast, Good day, Monaco and Little Heart
Steps:
1) T likes Parle G and sits second to the right of P.
2) T does not sit at any of the extreme corners.

6) R sits second to the left of the one who likes Oreo (That means case 1a and 2b are ruled out).
7) Q likes Oreo and he does not sit at any of the extreme corners of the row.

8) The immediate neighbour of the one who likes Hide & Seek faces S.
9) The one who likes Bourbon sits third to the right of the one who likes Hide & Seek.
10) The immediate neighbour of the one who likes Hide & Seek faces the one who likes Sun Feast.

14) P does not like Little Heart.

Clearly, D likes Good day.