Thanx for replying, I will be going to my Harvard Graduate Mechanic tomorrow (very true, finding good mechanic here in Quetta is near to impossible, have to tell them each and everything myself). Yes I had it filled up at Jacobabad area which is prone to adulterated Diesel.
Telling you todays experience, the Pajero is behaving rather better than yesterday, less smoke compared to yesterday and few days back. Seems like DIESEL is the main culprit here. Yet again , I will be going for Air Filter and Fuel Filter change tomorrow. Oil and Oil filter still has 1000kms to go.