Question

what were the effect the raids of Nadir Shah and Ahmed Shah abdali​

Answer 1

Mughal provinces were surrendered to the Persians. Nadir Shah's successor Ahmad Shah Abdali, following his tactics, too invaded India many times between 1748 and 1767 and raided Delhi

Emperor Nader Shah, the Shah of Persia (1736–47) and the founder of the Afsharid dynasty of Persia, invaded the Mughal Empire, eventually attacking Delhi in March 1739. His army had easily defeated the Mughals at the battle at Karnal and would eventually capture the Mughal capital in the aftermath of the battle.