(1) It is very unfortunate for me that I have not understood the holy Quran, so how can I give dawat to my non-Muslim brothers.
(2) Is there any course available in madrasa, for e.g. one year or two year in which training is given to students (engineering or other branch) about the holy Qruan. Hadith and Seerah of our Prophet (SAW) and how to give “dawat to non-Muslim brothers”?
بسم الله الرحمن الرحيم
Usually the course of madrasas covers 8 or 9 years, we do not know if any madrasa provides two or three year course. However, Darul Uloom Nadwatul Ulama Lucknow provides a short term course of 5 years for such persons. If someone has time then he should join Darul Uloom Nadwatul Ulama and complete the Alamiyat course. In case someone does not have time then he should visit any nearby madrasa for one or two hours and start studying before any Alim. It is not necessary to go and study in order to become Alim. Likewise he may also go in tablighi jamah and learn necessary religious teachings. He shall also learn how to invite non-Muslims towards Islam by going in jamah.
Allah knows Best!
Darul Uloom Deoband