Step 1: Introduction of printing press in India
The printing press was introduced in India by the Portuguese missionaries in the 16\textsuperscript{th} century.
Step 2: Place of introduction
The first printing press was established in Goa in 1556. It was set up by Jesuit missionaries to print religious literature and Christian texts.
Step 3: Significance
This marked the beginning of the era of printing in India, which later spread to other regions like Kerala, Tamil Nadu, and Bengal.
Step 4: Conclusion
Hence, the printing press started first in India in the state of Goa.
\[
\boxed{\text{Goa}}
\]
The value of $\dfrac{1+\cot^2 \theta}{1+\tan^2 \theta}$ will be: