Punjab National Bank [PNB] — transfer from bank account to ppf account (status showing: suspect)

On 29th jan 2019, i transferred an amount of rs. 1000 form my pnb savings account to my ppf account (Both are in same branch). I transferred it using net banking. The amount has been deducted from the savings account but is not reflected in the ppf account.
In the transactions window this transaction is shown with a status 'suspect'. I talked to call center people and they told me to visit the branch, and when i went to the branch they have not solved the problem.