complaint in consumer forum is filed on the basis of tampered receipt issued by courier company
yes
Not at all. If a document is not admissible in evidence, than the question of admissibality not arise...
Admissible as evidence
Your mode of dress is not admissible in court. The evidence cries to be admissible, your honor!
Hearsay
A certificate of cremation issued by is a "legal document" to the extent that the court can enter it into evidence as specified in the Federal Rules of Evidence (most State evidence codes mirror the FREs). Records of a religious nature and similar certificates are admissible over hearsay objection by Fed.R.Evid. 803(11) and 803(12). Records of regularly-conducted business activity are admissible hearsay by Fed.R.Evid. 803(6).
An image document can be a database record of a particular image, or it can be a copy of a document rather than the original. In some cases, records of documents and the fact of their existence and maintenance can be admissible evidence. In most cases, if you possibly can get the original document but have only a copy or do not have a valid reason for not having the original, the evidence could be problematic as to its admissibility. See best evidence rule.
The evidence was not admissible in court due to it having no relevance to the proceedings.
AA meetings can be admissible in court. If they are court ordered or relevant to an issue or evidence, then it usually is admissible.
In a court of law the only evidence that can be admissible must be gotten legally.
tampered with evidence
no
Yes.