Change of date of birth of my mother in her third passport to be applied

DEAR SIR, Its regarding change of date of birth of my mother in her third passport to be applied 1. My mother is 10th passed born in Panipat Haryana 2. As per our calculation her date of Birth is 01.04.1952 3. we reside in shimla himachal pradesh 4. Despite our best effort we were unable to find her birth certificate or school certificate. 5. In year 1984 first passport was made in which her year of birth was wrongly entered as 1943 ( no correction was made as the passport office was far from shimla). 6. My father date of birth is [deleted]. 7. In year 2006 second passport was made but we were unable to change the date as we were unable to support by any documents like birth certificate or school certificate. 8. It expired in 2016 9. Now we applied for the passport but we were unable to change the date of birth and year. 10. Now we have supporting documents like Pan card, Aadhar card with proper date 01.04.1952 but we don’t have birth certificate or school certificate. 11. Please guide as we don’t want the third passport with wrong date.