Step 1: Understanding the question
We must put four Doordarshan serials in the order of their first telecast. So we need the year each serial started. Then we sort the years from the oldest to the newest.
Step 2: Find the year of D, Karamchand
Karamchand, the detective serial, started in 1985. This is the earliest of the four.
Step 3: Find the year of B, Nukkad
Nukkad, a serial about the lives of ordinary street people, started in 1986.
Step 4: Find the year of C, Fauji
Fauji, the army serial that gave Shah Rukh Khan his start, began in 1988.
Step 5: Find the year of A, Udaan
Udaan, a serial about a woman police officer, started in 1989. This is the latest.
Step 6: Sort the years
1985 (D), 1986 (B), 1988 (C), 1989 (A). The order is D, B, C, A.
Step 7: Check the options
Option 1 (A, B, C, D) is the reverse of the real order, so it is wrong. Option 3 (B, A, D, C) puts Udaan too early, so it is wrong. Option 4 (C, B, D, A) puts Fauji first, so it is wrong. Option 2 (D, B, C, A) matches.
Final Answer:
The correct order of first telecast is D, B, C, A, which is option (2).
\[ \boxed{\text{Option (2): D, B, C, A}} \]