To go 3/1 chilla in tabligh jamat for rectification of myself and (/or) other Muslim or non-Muslim (men and women) is mandatory (fardh/mustahab) for me? Since, I am an Engineer.
بسم الله الرحمن الرحيم
(Fatwa: 987/791/B=06/1435)
In order to reform oneself or others one should go to jamah for one or three chilla. However, it is not fardh or wajib like other obligatory acts.
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband