SSC-Tier III(Descriptive Paper) study materials (English+Hindi)

The TIER- III of SSC CGL 2016 is for the first time going to be a descriptive paper. It is tentatively to be held on 5th March, 2017.
The descriptive Paper will comprise of 3 parts: Precis Writing, Letter Writing & Essay.
Here are some study materials & books for you to download in both English & Hindi:
Precis Writing:
Rules of Precis Writing
Precise Writing ebook
कैसे लिखें हिंदी में संक्षेपण
सार लेखन के उदाहरण

Letter Writing:
Rules to write Formal & Informal Letters
Letter writing handbook by Robert W. Bly
Compilation of different Informal Letters
Letters in Hindi (हिंदी पत्र लेखन )

Essay Writing:
Essays on different topics By Paramount Coaching (topics- Judicial Activism, Terrorism, Role of Media, Women Empowerment etc.)
Essay Writings by Gabi Duigu
Essays in Hindi by SSCforum (topics- बेटी बचाओ बेटी पढ़ाओ, महिला सशक्तिकरण, भ्रष्टाचार, वास्तु एवं सेवा कर (GST), आतंकवाद इत्यादि)