Their knowledge of Hindi and Marathi, and a few other very 'aamchi Mumbai' things, that's what the Somali pirates, convicted last year for hijacking a fishing vessel that had sailed from Iran in 2011, are taking back home with them. Sentenced to seven years in jail, the bunch was seen being escorted by the Mumbai Police to the Chhatrapati Shivaji International Airport last morning, having completed their term, a majority of it as undertrials.