Explanation:

1 only  

"The Election Commission of India is the only authority to decide issues regarding disputes of name and symbol in case of the merger of two parties." - This statement is correct. The Election Commission of India is indeed the authority that adjudicates disputes related to the name and symbol when two political parties merge.

"The registered parties are entitled to free broadcasting or telecasting facilities." - This statement is incorrect. While registered political parties do have certain privileges, including recognition as such, the provision of free broadcasting or telecasting facilities is generally not automatic for all registered parties. Such facilities are often provided based on certain criteria, such as the party's performance in previous elections.