From (1), either A or B will be in region c, and the other will be in region f.
From (2), D is in region d.
From (3), either F or G will be in region a, and the other will be in region f.
From (4), either both I and J will be in region c, or one will be in region b and the other in region c.
From (5), either H or I will be in region b, and the other will be in region a.
By combining (4) and (5), I will be in region b, H will be in region a, and J will be in region c.
Therefore, we have:
Region a = 3 (F or G, H, C or E), Region b = 1 (I), Region c = 3 (A or B, J, C or E)
Region d = 1 (D), Region f = 2 (B or A, G or F)
H definitely is an expert only in Tabla.
From (1), either A or B will be in region c, and the other will be in region f.
From (2), D is in region d.
From (3), either F or G will be in region a, and the other will be in region f.
From (4), either both I and J will be in region c, or one will be in region b and the other in region c.
From (5), either H or I will be in region b, and the other will be in region a.
By combining (4) and (5), I will be in region b, H will be in region a, and J will be in region c.
Therefore, we have:
Region a = 3 (F or G, H, C or E), Region b = 1 (I), Region c = 3 (A or B, J, C or E)
Region d = 1 (D), Region f = 2 (B or A, G or F)
J definitely is an expert only in Mridangam.
From (1), either A or B will be in region c, and the other will be in region f.
From (2), D is in region d.
From (3), either F or G will be in region a, and the other will be in region f.
From (4), either both I and J will be in region c, or one will be in region b and the other in region c.
From (5), either H or I will be in region b, and the other will be in region a.
By combining (4) and (5), I will be in region b, H will be in region a, and J will be in region c.
Also, one of A and B, and one of G and F are experts in both Tabla and Mridangam, but not Ghatam.
Since C and E do not include any of these four musicians (A, B, F, G), C and E must be in the same region.
Therefore, we have:
Since C and E do not include any of the four musicians (A, B, F, G), the answer must be C and E.
From (1), either A or B will be in region c, and the other will be in region f.
From (2), D is in region d.
From (3), either F or G will be in region a, and the other will be in region f.
From (4), either both I and J will be in region c, or one will be in region b and the other in region c.
From (5), either H or I will be in region b, and the other will be in region a.
By combining (4) and (5), I will be in region b, H will be in region a, and J will be in region c.
Additional information:
Therefore, the regions are allocated as follows:
Region a = 3 (H, F or G, C or E)
Region b = 1 (I)
Region c = 3 (A or B, J, C or E)
Region d = 1 (D)
Region f = 2 (A or B, G or F)
Considering F and E are only Tabla experts and not Mridangam or Ghatam experts:
So, the most logical placement:
Therefore, the placements are:
Hence, E and F are experts only in Tabla and placed in regions accordingly. C is the Mridangam expert placed correctly in the final allocation.