If the deceased left any immoveable property and died testate, then the legal heirs with the will can file the Letter of Probate under section 276 of Succession Act 1925 in the competent court of law which is District Judge or High Court as the case may be on the pecuniary jurisdiction.

At the time of granting the letter of Probate all legal formality are fulfilled as it is full filled in the succession certificate or in the Letter of administration. And on executing the bond letter of Probate is issued to the petitioner.
In addition to the letter of administration the written will and testament is filed who verify one witness that the deceased has signed in my presence on the attached will. If will is in other language then court language then it is translated of the court translator.