Best Investment to secure healthy Halal return on quarterly basis is Gold. profit & loss chances exist. Only 2.5% zakat is applicable after 12 months of possession
shadi season is around corner 60 days to Ramzan Shareef and Weddings after eid in June, right now is peak price gold season every one will be ordering jewellery for weddings.
for the time being invest in NIT units this is best time, for fixed time investment. 6 monthly or yearly, that again is halal because there is no fixed profit and income is admissable for taxation plus it is all clean under wealth statment.
encash NITs in Muharram and buy GOLD, again for 3 months as shadi season will start in Rabiul_awal again.. make it a cycle and you may not lose at bit over your principal amount