Monish,
Mweka College is the best facility we have. Not as grand as it used to be in the 70's and 80's, but still has a good following and offers well recognized courses. The College is also located beutifully on the slopes of Mount Kilimanjaro and you have awesome weather all year round, plus scenery that is priceless. When you come down, we can visit the place together and look into options. I studied in the same town of Moshi and boarding at the International School of Moshi (the first ever IB course in Africa) are some of the best times i had. The courses will only supplement your practical training though and Tanzania is probably the best field for practical training. Cheers mate,