Ishq Hai Tumse is a movie about friendship that does not heed the boundary of religion. Khusboo and Arjun are the children of two bosom friends – Nawab Usman and Thakur Shankar following the religions of Islam and Hinduism respectively. Shankar was invited by his friend to attend his daughter’s wedding. The former went to Lucknow with his family to be a part of the wedding celebrations. Our hero-heroine met thence in Lucknow and the saga of “ishq” took roots.
After the marriage ceremony was over and it was time for the Thakur family to take leave, Shankar Thakur suddenly collapsed. It was diagnosed as a case of kidney failure. When all efforts to find a donor failed, Usman Nawab came forward to the rescue of his dear friend and donated one of his kidneys.
When Shankar Thakur’s youngest son Arjun saw that Usman Nawab had saved his father’s life, he became apprehensive of the parental acceptance of the relationship between Khushboo and himself. What had not struck him earlier now worried him and he concluded that the friendship between Shankar Thakur and Usman Nawab was deeper than his emotions for Khushboo. So he made up his mind to avoid Khushboo completely.
After the Thakur family returned to Mumbai, Khushboo was heartbroken. She could not comprehend the reason for Arjun’s coldness. So on the pretext of a job interview she flew to Mumbai to meet him. This however did not help matters and she came back to Lucknow only to realize that her parents were planning her marriage with a person from Australia.
On hearing this news, Arjun was alarmed and his suppressed emotions surfaced. He confided to his Chachu who resolved to fly to Lucknow immediately to settle the marriage. However he died on the way and this made Arjun guilt-stricken.
Khushboo’s marriage drew closer. The Thakur family again went to Lucknow. During one of Arjun and Khushboo’s exchanges, Nawab Usman overheard them and became aware of their romance. Contrary to expectation, on the day of the marriage Nawab Usman foiled the event thereby culminating the relationship of Arjun and Khushboo.