The claim should be submitted post 30 days of survival only as it is benefit plan.
Follow this easy process to get critical illness claim:
Claim form duly signed along with attending physician statement
Photocopy of the discharge summary and final bill
Photocopy of the investigation report which confirm the diagnosis, e.g. CAG report in case of Coronary artery disease/ Bypass Surgery or biopsy report in cancer cases.
Medical certificate which states details of the treatment and fitness.
If the patient gets admitted post survival period, then cashless benefit in network hospital can be extended up to the benefit amount by the TPA.