Islamabad investment advice

I have approx pkr 2 cr to invest.

My first preference is to invest within cda sectors due to lower risk, i would be grateful if some of our learned members could share advice /tips of where to invest. Time frame 2-3 years.

Out of the private schemes i have been advised b17 - g block or shalimar town. Are these any good, are there any others schemes, kindly please advise.