If I don’t miss anything, these are your two options:
Option 1 (8.483 miles):
BLR-FRA LH 755 0115-0730
FRA-EWR LH 402 1320-1600
b) FRA-JFK SQ 26 0830-0945
Option 2 (11.505 miles):
BLR-SIN SQ 429 2355-0655
SIN-EWR SQ 22 1205-1700
Assuming the price of the ticket is no issue, I would opt for 1b (if possible), otherwise for 2.