Which dedicated defence satellite was launched by ISRO for DRDO around March 2019?

Introduction / Context:
India s space agency ISRO has launched several satellites with defence and strategic applications. Around early twenty nineteen, a dedicated electronic intelligence satellite was launched specifically for the Defence Research and Development Organisation, usually abbreviated as DRDO. General awareness questions often focus on matching such satellites with their purposes and launch dates, because they combine space technology and national security in one topic.

Given Data / Assumptions:

• The question asks which defence satellite was launched by ISRO for DRDO around March twenty nineteen.
• Options are GSAT 11, Microsat R, Emisat and Cartosat 1.
• We assume the reference is to the mission where ISRO launched a satellite dedicated to electronic intelligence for DRDO using a PSLV rocket.
• The task is to choose the satellite that fits this description.

Concept / Approach:
Emisat is the satellite that was launched by ISRO for DRDO to provide electronic intelligence support. It was placed in orbit by a PSLV mission around March twenty nineteen, accompanied by several smaller foreign satellites. GSAT 11 is a communication satellite, not primarily a DRDO mission. Microsat R is associated with a different mission, including India s anti satellite test, and Cartosat 1 is an earlier earth observation satellite. Therefore, identifying Emisat as the dedicated defence satellite for DRDO is the correct conceptual approach.

Step-by-Step Solution:
Step 1: Focus on the key details: defence satellite, launched by ISRO, for DRDO, around March twenty nineteen.Step 2: Recall that Emisat was described in news reports as an electronic intelligence satellite built for DRDO and launched in that time frame.Step 3: Look at the options and match these details with Emisat.Step 4: Select Emisat and discard GSAT 11, Microsat R and Cartosat 1, which have different roles and timelines.

Verification / Alternative check:
Press releases from ISRO and DRDO, as well as national newspapers, reported that Emisat was launched in a PSLV mission dedicated to placing the satellite into a low earth orbit for electronic intelligence tasks. These reports clearly mentioned DRDO as the beneficiary agency. Exam oriented current affairs notes summarised the event as ISRO launches Emisat, a defence satellite for DRDO. Checking even a single reliable current affairs source confirms that Emisat is the satellite referred to in this question.

Why Other Options Are Wrong:
GSAT 11 is a high throughput communication satellite designed to improve broadband connectivity, not a defence specific electronic intelligence satellite. Microsat R was used as a target for the Mission Shakti anti satellite test and is not described as a dedicated DRDO electronic intelligence satellite in March twenty nineteen. Cartosat 1 is an older earth observation satellite that predates this period and serves different purposes. Since the question is precisely about the defence satellite launched for DRDO around March twenty nineteen, only Emisat matches the description.

Common Pitfalls:
Candidates sometimes confuse different satellite names because they sound similar or because many ISRO launches occur within a short time. Another common mistake is to pick Microsat R due to its link with defence related testing, even though its primary role and context differ from that of Emisat. To avoid such confusion, it is helpful to maintain a small table of major recent satellites with their year, purpose and beneficiary agency, for example Emisat twenty nineteen DRDO electronic intelligence via ISRO, and revise it before exams.

Final Answer:
The dedicated defence satellite launched by ISRO for DRDO around March twenty nineteen was Emisat, so Emisat is the correct option.