260 is extremely an amazing score. However results are out. You can check your percentile and rank there. Also you haven't mentioned your category, the home state you belong to as the ranks also depend on them.
According to our Jee Main Rank Predictor, 260 marka out of 300, can fetch you a percentile in the range of 99.79 to 99.99 which means you can expect a rank within first 800 to 1000.
This would be your expected rank and this will vary from the actual rank as there are various factors those are taken into consideration for calculating the actual rank and those quantities vary every year.
Because of this amazing score, you should sit for Jee Advanced. And we have Jee Main College Predictor tool to help the aspirants to get the best colleges as per their rank and percentile http://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

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