The lockdown might have a big impact on CRL in JEE Mains, specially for those who do not have access to online coaching classes or study material. For these people their studies might have got disrupted to some extent. Feeling low during lockdown and not feeling like studying is only natural, and must have impacted everyone in general. However successful will be those people who get over the lockdown blues, and take this time as extra study hours in disguise. All the best!