लक्षवेधी सूचनेच्या संदर्भात _____ ही योग्य विधान/ने आहेत.
(a) निकडीच्या सार्वजनिक हिताच्या बाबीकडे मंत्र्याचे लक्ष वेधण्यासाठीचा हा एक उपाय आहे.
(b) ती मांडण्यासाठी 50 सदस्यांचे समर्थन आवश्यक असते.
(c) राज्यसभेला हा उपाय वापरण्याची परवानगी नसते.
(d) 1952 पासून सुरू असलेली संसदीय प्रणालीतील नावीन्यपूर्ण पद्धती आहे.

The correct answer is Option A ((a) only).

Key Points:
• Parliamentary Devices & Calling Attention Notice:
• Statement (a): Calling Attention Notice is introduced by a member to call the attention of a minister to an urgent matter of public importance, seeking an authoritative statement from him (Correct).
• Statement (b): It does not require the support of 50 members to be admitted (the support of 50 members is required for an Adjournment Motion or No-Confidence Motion, not Calling Attention) (Incorrect).
• Statement (c): Rajya Sabha also makes extensive use of the Calling Attention Notice under its own rules of procedure (Incorrect).
• Statement (d): Calling Attention is indeed an Indian parliamentary innovation, but it was introduced in 1954, not 1952 (Incorrect).
• Therefore, only statement (a) is correct (Option 1).
• Key Takeaway: Calling Attention Notice was introduced in 1954 as an Indian innovation to draw a Minister's attention to urgent public matters without requiring 50 members' support.